A U.S. Marine with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa provides security during quick-response training aboard Naval Station Rota, Spain, January 23, 2016. The alert force tested the unit’s capabilities by simulating the procedures of reacting to a time-constrained, crisis-response mission. (U.S. Marine Corps photo by Sgt. Tia Nagle)

U.S. Marines with Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa extract a simulated casualty during quick-response training aboard Naval Station Rota, Spain, January 23, 2016. The alert force tested the unit’s capabilities by simulating the procedures of reacting to a time-constrained, crisis-response mission. (U.S. Marine Corps photo by Sgt. Tia Nagle)