Lance Cpl. Ryan Zerites, a combat engineer with Alpha

Lance Cpl. Ryan Zerites, a combat engineer with Alpha Company, 2nd Combat Engineer Battalion, 2nd Marine Division, practices implementing the Compact Metal Detector during the practical application portion of a week-long Counter-IED course aboard Camp Lejeune, N.C., March 2-5, 2015. The course included classes covering individual preparedness in an improvised explosive device environment, small unit leader considerations in an IED environment, homemade explosives and a metal detector operator’s course. (U.S. Marine Corps photo by Cpl. Krista James/Released)