Reserve maintainers at Keen Sword '17

U.S. Air Force Reserve technical sergeants Chris Paredes and John Marsh review technical data prior to performing maintenance on an HH-60 PaveHawk helicopter at Kadena Air Base, Japan, Oct. 31, 2016. Both Airmen are assigned to the 943rd Maintenance Squadron, 943rd Rescue Group, Davis-Monthan Air Force Base, Ariz., and are at Kadena AB for Keen Sword, a bilateral defense exercise designed to practice defending Japan against foreign aggression. (Photo by Master Sgt. Greg Gaunt)

U.S. Air Force Reserve technical sergeants Chris Paredes and John Marsh review technical data prior to performing maintenance on an HH-60 PaveHawk helicopter at Kadena Air Base, Japan, Oct. 31, 2016. Both Airmen are assigned to the 943rd Maintenance Squadron, 943rd Rescue Group, Davis-Monthan Air Force Base, Ariz., and are at Kadena AB for Keen Sword, a bilateral defense exercise designed to practice defending Japan against foreign aggression. (Photo by Master Sgt. Greg Gaunt)

U.S. Air Force Reserve Senior Airman Brandon McLaughlin services a helicopter tail rotor gearbox on an HH-60 PaveHawk helicopter during deployment spinup training at Kadena Air Base, Japan, Oct. 31, 2016.  McLaughlin is assigned to the 943rd Maintenance Squadron, 943rd Rescue Group, Davis-Monthan Air Force Base, Ariz., and is at Kadena AB for Keen Sword, a bilateral defense exercise designed to practice defending Japan against foreign aggression. (Photo by Master Sgt. Greg Gaunt)

U.S. Air Force Reserve Senior Airman Brandon McLaughlin services a helicopter tail rotor gearbox on an HH-60 PaveHawk helicopter during deployment spinup training at Kadena Air Base, Japan, Oct. 31, 2016. McLaughlin is assigned to the 943rd Maintenance Squadron, 943rd Rescue Group, Davis-Monthan Air Force Base, Ariz., and is at Kadena AB for Keen Sword, a bilateral defense exercise designed to practice defending Japan against foreign aggression. (Photo by Master Sgt. Greg Gaunt)

U.S. Air Force Reserve Senior Airman Brandon McLaughlin installs a cowling on an HH-60 PaveHawk helicopter during deployment spinup training at Kadena Air Base, Japan, Oct. 31, 2016. McLaughlin is assigned to the 943rd Maintenance Squadron, 943rd Rescue Group, Davis-Monthan Air Force Base, Ariz., and is at Kadena AB for Keen Sword, a bilateral defense exercise designed to practice defending Japan against foreign aggression. (Photo by Master Sgt. Greg Gaunt)

U.S. Air Force Reserve Senior Airman Brandon McLaughlin installs a cowling on an HH-60 PaveHawk helicopter during deployment spinup training at Kadena Air Base, Japan, Oct. 31, 2016. McLaughlin is assigned to the 943rd Maintenance Squadron, 943rd Rescue Group, Davis-Monthan Air Force Base, Ariz., and is at Kadena AB for Keen Sword, a bilateral defense exercise designed to practice defending Japan against foreign aggression. (Photo by Master Sgt. Greg Gaunt)

DAVIS-MONTHAN AIR FORCE BASE, Ariz. --