A Soldier with Headquarters and Headquarters Troop, 3rd Armored Brigade Combat Team, 1st Cavalry Division performs incline pushups as another Soldier holds his feet during the Hammer Challenge Jan. 23 at Fort Hood, Texas. Teams represented their platoons and cheered each other on to build esprit de corps. (U.S. Army photo by Sgt. Brandon Banzhaf, 3rd ABCT PAO, 1st Cavalry Division)