A rainbow appears behind the Spirit of Missouri, one of the Air Force’s B-2A stealth bombers, during the Year of the B-2 Gala at Whiteman AFB, Mo., Sept. 28, 2013. The gala was one of the events Air Force Global Strike Command has hosted in 2013 to mark the 20th year of B-2 operations at the base. Air Force photo by SSgt. Brigitte N. Brantley