Lance Cpl. Christian E. Miller prepares to clear a

Lance Cpl. Christian E. Miller prepares to clear a building during a simulated room clearing training exercise on Camp Hansen in Okinawa, Japan, Dec. 11, 2015. The training, referred to as ‘tape room clearing,’ is essentially military operations in urban terrain training set in a two-dimensional environment where buildings are distinguished by taped outlines on the ground. Miller, a native of Grand Rapids, Michigan, is an infantryman with Alpha Company, Battalion Landing Team 1st Battalion, 5th Marines, 31st Marine Expeditionary Unit. (U.S. Marine photo by Lance Cpl. Samantha Villarreal/Released)