U.S. Army Spc. Cameron Buchanan, a squad automatic weapon gunner with B Company, 4th Battalion, 23rd Infantry Regiment, 2nd Brigade, 2nd Infantry Division, trains a Singaporean soldier from 2nd Battalion, Singapore Infantry Regiment on how to properly fire an M4 Rifle during training at Pasir Laba Camp, Singapore, July 16, 2013. The training was part of Exercise Lightning Strike 2103, a U.S. Army Pacific sponsored event that partners Singaporean and U.S. soldiers.