A soldier assigned to the 2nd Cavalry Regiment walks through smoke during a training exercise at Military Training Area Lest, Slovakia, March 8, 2022. The exercise, which includes participation from 13 NATO allied and partner nations, is designed to show NATO's collective capabilities to operate under austere conditions and demonstrate collective strength. (Staff Sgt. Jose H. Rodriguez/Army)

An Air Force B-52H Stratofortress assigned to the 69th Bomb Squadron at RAF Fairford, England, flies over the Alpine Mountains, March 7, 2022. (Airman 1st Class Zachary Wright/Air Force)

Soldiers stage their gear for departure prior to deployment from Fort Knox, Ky., to Germany, March 7, 2022. The troops are heading for Germany where they will support Army forces in Europe. (Renee Rhodes/Army)

Air Force Staff Sgt. Zachary Smith refuels an HH-60G Pave Hawk assigned to the 56th Rescue Squadron in Romania, March, 8, 2022. (Senior Airman Noah Sudolcan/Air Force)

Marines with 1st Battalion, 3rd Marines, 3rd Marine Division, conduct urban breaching training during a demolition range at Camp Hansen, Okinawa, Japan, March 10, 2022. (Sgt. Micha Pierce/Marine Corps)

Navy Petty Officer 1st Class Genedonabelle Hernando operates a patrol boat during training in Long Beach, Calif., March 9, 2022. (Chief Petty Officer Nelson Doromal Jr./Navy)

Soldiers with 1st Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade, conduct a live fire training event during an exercise in Kenya, March 9, 2022. (Sgt. N.W. Huertas/Army)

Marine Corps drill masters inspect a platoon during a close order drill practice at Marine Corps Recruit Depot, San Diego, March 1, 2022. (Cpl. Grace J. Kindred/Marine Corps)

Lt. Isay Rapoport directs an F/A-18E Super Hornet, assigned to the "Tophatters" of Strike Fighter Squadron (VFA) 14, on the flight deck of the Nimitz-class aircraft carrier Abraham Lincoln in the Philippine Sea, March 13, 2022. (MCS3 Javier Reyes/Navy)

An Air Force F-22 Raptor pilot assigned to the 380th Air Expeditionary Wing, flies over Southwest Asia, March 9, 2022. (Staff Sgt. Stefan Alvarez/Air Force)