The 28th Bomb Squadron (28 RS) is a squadron of the United States Air Force. It is assigned to the 7th Operations Group, Air Combat Command, stationed at Dyess Air Force Base, Texas. The squadron is equipped with the Rockwell B-1B Lancer. The 28 BS is one of the oldest and most decorated units in the United States Air Force, being organized as the 28th Aero Squadron on 22 June 1917 at Kelly Field, Texas. The squadron deployed to France and fought on the Western Front during World War I as a pursuit squadron. The unit was demobilized after the war in 1919.