Maj. Tyrone Bess, combatives and Jiu-Jitsu instructor, teaches members of the 374th Security Forces Squadron 2018 Security Forces Advanced Combat Skills Assessment team hand-to-hand combat techniques, May 21, 2018, at Yokota Air Base, Japan. In preparation for the 2018 ACSA competition at Andersen Air Force Base, Guam, the 374 SFS team regularly trained in hand-to-hand combat. (U.S. Air Force photo by Senior Airman Donald Hudson)