The Marine Corps Recruiting Command pull-up bar poses a challenge for the crowd at the 2011 Joint Service Open House at Joint Base Andrews, Md. JSOH affords the public an excellent opportunity to meet and interact with the men and women of the Armed Forces and to showcase military equipment from the Navy, Marines, Army, Air Force, and Coast Guard. JSOH is planned and conducted by Total Force; Active, Guard, Reserve, Civilian employees, as well as retirees and family. (U.S. Marine Corps photo)