U.K. Royal Army paratroopers from the 16 Air Assault Brigade take cover during a simulated raid at Fort Bragg, N.C., April 18, 2015, as part of the Combined Joint Operational Access Exercise 15-01. CJOAX 15-01 is an 82nd Airborne Division-led bilateral training event at Fort Bragg, N.C., from April 13-19, 2015. This is the largest exercise of its kind held at Fort Bragg in nearly 20 years and demonstrates interoperability between U.S. and U.K. Army soldiers in addition to U.S. Air Force, Air National Guard and Royal Air Force airmen. U.S. Marines stationed out of Camp Lejeune, N.C., also participated. (U.S. Air Force photo by Senior Airman Marianique Santos/ Released)