Sergeant Michael T. Landon (left), a training noncommissioned officer for II MEF Headquarters Group and Port Huron, Mich., native, teaches a class on the proper wear of personal protective equipment during a MHG field exercise aboard Marine Corps Base Camp Lejeune, N.C., March 12-19, 2015. The purpose of the FEX was to allow the Marines the opportunity to test their skill sets and find areas of improvement. (Marine Corps Photo by Cpl. Chelsea D. Toombs/Released)