The 374th Security Forces Squadron 2018 Security Forces Advanced Combat Skills Assessment team, enter a building in formation during tactical building clearing training, June 1, 2018, at Yokota Air Base, Japan. The 374 SFS team regularly trained in building clearing tactics and other simulated combat situations for the 2018 ACSA competition at Andersen Air Force Base, Guam. (U.S. Air Force photo by Senior Airman Donald Hudson)