An Airman from the 824th Base Defense Squadron guards an entrance to a building during close-quarters battle training, Feb. 28, 2018, at Moody Air Force Base, Ga. The 820th Base Defense Group welcomed a member of the British Royal Air Force to embed into multiple training situations to help strengthen combined operations between U.S. and British forces. (U.S. Air Force photo by Senior Airman Daniel Snider)