Marines with 8th Communication Battalion take a plunge from an 8-foot platform to simulate an abandon ship procedure during their annual swim qualification aboard Marine Corps Base Camp Lejeune, N.C., March 4, 2015. A swim qualification every two years is a requirement for all able-bodied Marines to ensure mission readiness and to uphold the basic level of Marine Corps standards. (Official Marine Corps photo by Cpl. Jorden M. Wells/Released)