Lance Cpl. Tristan Armstrong, left, demonstrates how

Lance Cpl. Tristan Armstrong, left, demonstrates how to properly charge C4 Nov. 29 at Charlie runway during a demolition range in Exercise Forager Fury II. FF II is a joint exercise designed to employ and assess combat power generation in a deployed and austere environment. The range allowed Marines to expand the runway’s capabilities and let Marines from other MOSs receive demolition training from the engineers, according to 1st Lt. Taylor Keithley, a platoon commander with Marine Wing Support Squadron 171, Marine Aircraft Group 12, 1st Marine Aircraft Wing, III Marine Expeditionary Force. Armstrong is combat engineer with MWSS-171. (U.S. Marine Corps photo by Lance Cpl. Antonio Rubio/released)