Photos

Marines drink cobra blood during survival training as part of Cobra Gold 17, a humanitarian relief exercise, at Camp Ban Chan Krem, Thailand, Feb. 17, 2017. Marine Corps photo by Cpl. Steven Tran
An Air Force F-16 Fighting Falcon receives fuel from a 909th Air Refueling Squadron KC-135 Stratotanker off the coast of Guam, Feb. 21, 2017. Air Force photo by Senior Airman John Linzmeier
Soldiers maneuver through the town of Barasu in the National Training Center at Fort Irwin, Calif., Feb. 20, 2017, while attempting to recapture the city. Army photo by Pvt. Austin Anyzeski
Two sailors, both naval aircrewmen, conduct a live-fire exercise from an MH-60S Seahawk helicopter over the South China Sea, Feb. 21, 2017. Navy photo by Petty Officer 2nd Class Amy M. Ressler
Air Force Academy cadets hold training rifles during obstacle training at an officer aptitude assessment at Camp Bullis, Texas, Feb. 14, 2017. Air Force photo by Airman 1st Class Daniel Snider
Soldiers assigned to the 3rd U.S. Infantry Regiment, or the "The Old Guard," perform a live-fire demonstration at George Washington's Mount Vernon, Va., Feb. 20, 2017. Army photo by Zane Ecklund
Sailors prepare to come alongside a Brunei navy vessel during an exercise in the South China Sea, Feb. 19, 2017. Navy photo by Petty Officer 2nd Class Amy M. Ressler