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Angel Thunder 2015: High Angle Rescue

Knots sit on a line during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

Knots sit on a line during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Cpl. James LaFrance, reconnaissance Marine, rappels down a cliffside during  Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. LaFrance is a assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Cpl. James LaFrance, reconnaissance Marine, rappels down a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. LaFrance is a assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Air Force Senior Airman Miles Roberts, 304th Rescue Squadron pararescueman, watches the rope as U.S. Marine Corporal Dan Peete, reconnaissance Marine, makes sure his harness is properly secured to the anchored rope duringAngel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Roberts is assigned to the 304th Rescue Squadron is stationed at Portland Air National Guard Base, Ore. and Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Air Force Senior Airman Miles Roberts, 304th Rescue Squadron pararescueman, watches the rope as U.S. Marine Corporal Dan Peete, reconnaissance Marine, makes sure his harness is properly secured to the anchored rope duringAngel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Roberts is assigned to the 304th Rescue Squadron is stationed at Portland Air National Guard Base, Ore. and Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Corporal Dan Peete, reconnaissance Marine, prepares to rappel down a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. Exercise Angel Thunder is the world’s largest personnel recovery exercise, hosting 11 partner nations and nine inter-agencies at Davis-Monthan Air Force Base in Tucson, Ariz.  Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson)

U.S. Marine Corporal Dan Peete, reconnaissance Marine, prepares to rappel down a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. Exercise Angel Thunder is the world’s largest personnel recovery exercise, hosting 11 partner nations and nine inter-agencies at Davis-Monthan Air Force Base in Tucson, Ariz. Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson)

U.S. Marine Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, teaches U.S. Navy Hospital Corpsman 3rd Class Chris Trinidad, special amphibious reconnaissance corpsman , how to make a unassisted hand brake during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Martinez is assigned to the Expeditionary Operations Training Group and Trinidad is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division both at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, teaches U.S. Navy Hospital Corpsman 3rd Class Chris Trinidad, special amphibious reconnaissance corpsman , how to make a unassisted hand brake during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Martinez is assigned to the Expeditionary Operations Training Group and Trinidad is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division both at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Sgt. Preston Gabaldon, reconnaissance Marine, rappels down a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. LaFrance is a assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Sgt. Preston Gabaldon, reconnaissance Marine, rappels down a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. LaFrance is a assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Navy Hospital Corpsman 3rd Class Chris Trinidad, special amphibious reconnaissance corpsman, makes a unassisted hand brake during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Trinidad is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Navy Hospital Corpsman 3rd Class Chris Trinidad, special amphibious reconnaissance corpsman, makes a unassisted hand brake during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Trinidad is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, shows U.S. Navy Hospital Corpsman 3rd Class Chris Trinidad special amphibious reconnaissance corpsman, how to use his unassisted hand brake during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Martinez is assigned to the Expeditionary Operations Training Group and Trinidad is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division both at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, shows U.S. Navy Hospital Corpsman 3rd Class Chris Trinidad special amphibious reconnaissance corpsman, how to use his unassisted hand brake during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes properly, rappelling down a cliffside unassisted, and returning to the initial elevation point. Martinez is assigned to the Expeditionary Operations Training Group and Trinidad is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division both at Camp Pendleton, Calif. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Air Force Reserve Airmen and U.S. Marines practice tying various knots used in rappelling during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, the U.S. Marines and U.S. Airmen also practiced how to anchor ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are stationed at Camp Pendleton, Calif., and the Airmen are assigned to the 304th RQS at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Reserve Airmen and U.S. Marines practice tying various knots used in rappelling during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, the U.S. Marines and U.S. Airmen also practiced how to anchor ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are stationed at Camp Pendleton, Calif., and the Airmen are assigned to the 304th RQS at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Senior Airman Miles Roberts, reserve pararescueman, assists U.S. Marine Corps Cpl. Dan Peete, reconnaissance Marine, tie a knot designed to stay secure while rappelling during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Roberts is assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore., and Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Senior Airman Miles Roberts, reserve pararescueman, assists U.S. Marine Corps Cpl. Dan Peete, reconnaissance Marine, tie a knot designed to stay secure while rappelling during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Roberts is assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore., and Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marines Corps Cpls. Dave Peete and James LaFrance, reconnaissance Marines, practice tying and testing the strength of knots they will use to rappel during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Peete and LaFrance is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marines Corps Cpls. Dave Peete and James LaFrance, reconnaissance Marines, practice tying and testing the strength of knots they will use to rappel during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Peete and LaFrance is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Staff Sgt. Adam Morrison, Expeditionary Operations Training Group instructor, speaks to fellow Marines about different ways to anchor a rappel rope using the natural environment during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Staff Sgt. Adam Morrison, Expeditionary Operations Training Group instructor, speaks to fellow Marines about different ways to anchor a rappel rope using the natural environment during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corporal Dan Peete, reconnaissance Marine, observes as U.S. Air Force Senior Airman Miles Roberts, reserve pararescueman, secures his harness to the rope during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. Exercise Angel Thunder is the world’s largest personnel recovery exercise, hosting 11 partner nations and nine inter-agencies at Davis-Monthan Air Force Base in Tucson, Ariz.  Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. and Roberts is assigned to the 304th Rescue Squadron is stationed at Portland Air National Guard Base, Ore.  (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)
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U.S. Marine Corporal Dan Peete, reconnaissance Marine, observes as U.S. Air Force Senior Airman Miles Roberts, reserve pararescueman, secures his harness to the rope during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. Exercise Angel Thunder is the world’s largest personnel recovery exercise, hosting 11 partner nations and nine inter-agencies at Davis-Monthan Air Force Base in Tucson, Ariz. Peete is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. and Roberts is assigned to the 304th Rescue Squadron is stationed at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Tech. Sgt. Courtney Richardson/Released)

U.S. Marine Corps Staff Sgt. Adam Morrison, Expeditionary Operations Training Group instructor, demonstrates how to anchor a rappel rope using the natural environment to fellow Marines during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Staff Sgt. Adam Morrison, Expeditionary Operations Training Group instructor, demonstrates how to anchor a rappel rope using the natural environment to fellow Marines during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Staff Sgt. Adam Morrison, and Sgt. Adam Martinez, Expeditionary Operations Training Group instructors, teach fellow Marines how to tie a football knot during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif.  (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Staff Sgt. Adam Morrison, and Sgt. Adam Martinez, Expeditionary Operations Training Group instructors, teach fellow Marines how to tie a football knot during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Staff Sgt. Adam Morrison, and Sgt. Adam Martinez, Expeditionary Operations Training Group instructors, demonstrate how to anchor a rappel rope using a football knot and a boulder to fellow Marines during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Staff Sgt. Adam Morrison, and Sgt. Adam Martinez, Expeditionary Operations Training Group instructors, demonstrate how to anchor a rappel rope using a football knot and a boulder to fellow Marines during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, teaches a group of fellow Marines about improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, teaches a group of fellow Marines about improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, teaches a group of fellow Marines about improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, teaches a group of fellow Marines about improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, ties a knot while teaching about improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are stationed at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, ties a knot while teaching about improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are stationed at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, demonstrates how to use improvised rappel anchors to fellow Marines during  Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marine Corps Sgt. Adam Martinez, Expeditionary Operations Training Group instructor, demonstrates how to use improvised rappel anchors to fellow Marines during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Marines are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Senior Airman Austin Sanders, reserve pararescueman, rappels down a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Sanders is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Senior Airman Austin Sanders, reserve pararescueman, rappels down a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Sanders is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Senior Airman Miles Roberts, reserve pararescueman, observes a fellow pararescueman rappel during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Roberts is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Senior Airman Miles Roberts, reserve pararescueman, observes a fellow pararescueman rappel during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Roberts is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Senior Airman Austin Sanders, reserve pararescueman, ascends a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point.  Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Sanders is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Senior Airman Austin Sanders, reserve pararescueman, ascends a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Sanders is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Senior Airman Austin Sanders, reserve pararescueman, ascends a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point.  Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Sanders is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Senior Airman Austin Sanders, reserve pararescueman, ascends a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Sanders is assigned to the 304th Reserve Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Senior Airman Miles Roberts observes Senior Airman Austin Sanders ascend a cliffside during  Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Roberts and Sanders are both reserve pararescuemen assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Senior Airman Miles Roberts observes Senior Airman Austin Sanders ascend a cliffside during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Roberts and Sanders are both reserve pararescuemen assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance Marines, work together to tie a football knot during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance Marines, work together to tie a football knot during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance Marines, work together to tie a football knot during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance Marines, work together to tie a football knot during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. The Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Marines Corps Cpl. James LaFrance, reconnaissance Marine, practices anchoring a rope using improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point.  Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. LaFrance is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Marines Corps Cpl. James LaFrance, reconnaissance Marine, practices anchoring a rope using improvised rappel anchors during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. LaFrance is assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Staff Sgt. Andy Craig, a reserve survival, evasion, resistance and escape specialist, teaches U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance man, about football knots during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Craig is assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore., and the Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Staff Sgt. Andy Craig, a reserve survival, evasion, resistance and escape specialist, teaches U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance man, about football knots during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Craig is assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore., and the Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)

U.S. Air Force Staff Sgt. Andy Craig, a reserve survival, evasion, resistance and escape specialist, teaches U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance man, about football knots during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point.  Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Craig is assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore., and the Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)
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U.S. Air Force Staff Sgt. Andy Craig, a reserve survival, evasion, resistance and escape specialist, teaches U.S. Marines Corps Cpls. Dave and Dan Peete, reconnaissance man, about football knots during Angel Thunder 2015 high angle rescue training at Mount Lemmon, Ariz., June 1, 2015. During the training, U.S. Marines and U.S. Airmen practiced tying knots, anchoring ropes, rappelling down a cliffside unassisted, and returning to the initial elevation point. Angel Thunder is an Air Combat Command-sponsored personnel recovery exercise for combat air force, joint, allied and interagency participants. Craig is assigned to the 304th Rescue Squadron at Portland Air National Guard Base, Ore., and the Peetes’ are assigned to Force Company, 1st Reconnaissance Battalion, 1st Marine Division at Camp Pendleton, Calif. (U.S. Air Force photo by Senior Airman Betty R. Chevalier/Released)