U.S. Army Command Sgt. Maj. Robert Bell and Command Sgt. Maj. Robert Walker salute the soldiers of the 1st Battalion, 7th Air Defense Artillery as the honor guard presents the nation's colors and battalion colors during the change of responsibility ceremony at Al Dhafra Air Base, United Arab Emirates, March 11, 2018. The 1st Battalion, 7th Air Defense Artillery Regiment was first constituted on March 8, 1898 at Fort Slocum, New York. (U.S. Air Force photo by Tech. Sgt. Anthony Nelson Jr)