U.S. Marines with Bravo Company, 1st Battalion, 5th Marine Regiment (1/5), 1st Marine Division (MARDIV) from Marine Corps Base (MCB) Camp Pendleton, Calif., conduct radio checks during an air assault while participating in exercise Steel Knight 2014 (SK-14) at Camp Wilson, Marine Corps Air Ground Combat Center in Twentynine Palms, Calif., Dec. 13, 2013. SK-14 is a large scale combined arms, live-fire exercise integrating ground troops from 1st MARDIV, aviation and logistical support from 3rd MAW and 1st Marine Logistics Group to ensure that our nation is fully prepared for employment as a maneuver force across the range of military operations. (U.S. Marine Corps photo by Sgt. Keonaona C. Paulo, 3rd MAW Combat Camera/Released)