The United States Navy Blue Angels demonstration team performs during the Joint Service Open House, May 18, 2012, at Joint Base Andrews, Md. This year's Joint Service Open House celebrates the Centennial of Marine Corps Aviation. JSOH affords the public an opportunity to meet the men and women of the Armed Forces while viewing over 100 static displays and 19 aerial demonstration teams. (U.S. Air Force photo by Senior Airman Perry Aston)