Sgt. Nicholas A. Skaggs, a platoon sergeant with Company C, 6th Engineer Support Battalion, 4th Marine Logistics Group, Marine Forces Reserve, provides security on a building during a simulated raid on an urban compound during exercise Red Dagger at Fort Indiantown Gap, Penn., June 13, 2016. Exercise Red Dagger is a bilateral training exercise that gives Marines an opportunity to exchange tactics, techniques and procedures as well as build working relationships with their British counterparts. (U.S. Marine Corps photo by Sgt. Ian Leones/Released)