Senior Airman Shain Chairez, 374th Security Forces Squadron response force leader, performs team pushups during Yokota’s 2019 National Police Week Defenders Challenge at Yokota Air Base, Japan, May 21, 2019. U.S. service members from the Air Force, Marine Corps, Army and Navy serving in Japan took part in the event. (U.S. Air Force photo by Machiko Arita)