An Lao Valley, Vietnam, April 1967: Two tanks from 1st Platoon, A Company, 60th Armored Cavalry move in to help soldiers shield a wounded comrade during fighting along a riverbank in the An Lao Valley in 1967.

Garmisch, Germany, March 1, 2003: Mark Marchant races down the piste in the ski giant slalom event at the 2003 U.S. Forces Europe Ski and Snowboard Series in Garmish.

Although Battery X did not exist on paper, its work was very real. A highly secretive Army unit, Battery X was composed almost entirely of women responsible for defending D.C. against an air attack.

Berlin, Germany, Feb. 6, 1947: Military Police wait at the snow-covered entrance at Berlin’s Lichterfelde-West train station for former President Herbert Hoover to arrive.

Grafenwoehr, Germany, June 3, 1950: Five tanks roll passed the review stand at Grafenwoehrs’s parade grounds.

Kandahar Province, Afghanistan, Aug. 27, 2011: Sgt. Ramone Villablanca of Company C, 1st Battalion, 32 Infantry Regiment, 3rd Brigade Combat Team, 10th Mountain Division uses a “minehound” to check for improvised explosive devices.

Berlin, Sept. 7, 1994: Sgt. Brett Hickman (left), Sgt. David Rogers and Sgt. Alton Henderson from the Berlin Brigade perform the final retreat ceremony for the American flag at Clay Headquarters, marking the departure of U.S. troops from Berlin.

Kabul, Afghanistan, Jan. 15, 2015: Crowds watch a buzkashi match on the outskirts of Kabul.