An AH-64 Apache helicopter hovers low while supporting soldiers conducting air assault training at Joint Base Lewis-McChord, Wash., April 27, 2016. Army photo by Capt. Brian Harris Airmen line up before jumping out of an MC-130J Commando II aircraft during Emerald Warrior 16 at Hurlburt Field, Fla., May 4, 2016. Air Force photo by Staff Sgt. Paul Labbe An F/A-18F Super Hornet assigned to Strike Fighter Squadron 32 takes off from the flight deck of the aircraft carrier USS Dwight D. Eisenhower in the Atlantic Ocean, March 24, 2016. Navy photo by Petty Officer 3rd Class Jameson E. Lynch A French Rafale aircraft flies over Iraq in support of Operation Inherent Resolve, Jan. 8, 2016. Air Force photo by Tech. Sgt. Nathan Lipscomb The guided-missile destroyer USS Gonzalez transits the Gulf of Aden, May 14, 2016. Navy photo by Petty Officer 3rd Class Pasquale Sena Cruciform T-11 canopies collapse as paratroopers land during a practice forced-entry parachute assault on Malemute drop zone at Joint Base Elmendorf-Richardson, Alaska, April 5, 2016. Air Force photo by Alejandro Pena Two CH-47F Chinook helicopters fly through the Alaska Range enroute to base camp on Kahiltna Glacier, Alaska, April 24, 2016. Army photo by John Pennell Army 1st Lt. John Dupre, a tank commander with the North Carolina Army National Guard’s C Company, 1st Battalion, 252nd Armored Regiment, directs his crew’s fire from the hatch of their M1A1 Abrams tank while engaging targets on the range during the Gen. Gordon Sullivan Cup best tank crew competition at Fort Benning, Ga., Monday, May 2, 2016. U.S. Army photo by Sgt. 1st Class Jon Soucy Sailors fire weapons during a live-fire exercise at night while conducting an annual training exercise near Fort Knox, Ky., April 17, 2016. Navy photo by Petty Officer 2nd Class Gabriel Bevan A 36th Airlift Squadron C-130 Hercules conducts a night flight mission over Yokota Air Base, Japan, May 11, 2016. Air Force photo by Yasuo Osakabe