Soldiers load a 155 mm artillery round into an M777 howitzer before conducting a fire mission during Operation Lightning Strike at Pohakuloa Training Area, Hawaii, May 16, 2018. The soldiers are assigned to the 25th Infantry Division’s 25th Division Artillery. Operation Lightning Strike is a combined arms live-fire exercise that increases unit interoperability and synchronization in an effort to concentrate combat power on the battlefield. Army photo by Sgt. Ian Morales