Navy unit trains with D-M
Sailors detached from Helicopter Sea Combat Squadron 4,Naval Air Station North Island, San Diego, Calif., perform preflight checks on a Navy MH-60S Knighthawk as an A-10C Thunderbolt II flies in the background at Davis-Monthan Air Force Base, Ariz., Nov. 13, 2014. HSC-4 conducted joint training with D-M A-10C Thunderbolt II squadrons and Combat Search and Rescue units to strengthen operations between the services. (U.S. Air Force Photo by Airman 1st Class Chris Massey/Released)