Corporal Corey Hamby, a rifleman with 3rd Battalion,

Corporal Corey Hamby, a rifleman with 3rd Battalion, 8th Marine Regiment, teaches a class on patrolling during a pre-deployment certification exercise for Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa on Marine Corps Base Camp Lejeune, N.C., June 18, 2015. The Marines gave a class on patrolling while role players acted as host national military members to practice what it will be like to work with an interpreter and teach partner militaries as they prepare for deployment with SPMAGTF-CR-AF. (U.S. Marine Corps photo by Cpl. Olivia McDonald/Released)