A U.S. Marine with Aircraft Rescue & Firefighting, Headquarters & Headquarters Squadron, Marine Corps Air Station Yuma (MCAS Yuma), adjusts water pressure to a fire hose during an aviation mishap drill aboard MCAS Yuma on October 22, 2013. The drill is conducted to test and evaluate the procedures utilized by MCAS Yuma personnel in the event of an actual mishap. (U.S. Marine Corps photo by Sgt Leon M. Branchaud/Released)