A re-designation ceremony for the Marine Fighter Attack Squadron 121 was held Tuesday afternoon inside the hanger for the Green Knights at Marine Corps Air Station Yuma. The Green Knights are the first F-35B Lightning II squadron that will call MCAS Yuma home. On hand for the ceremony were General James Amos, Commandant of the Marine Corps, Arizona Governor Jan Brewer and United States Senatore John McCain. Here's a look at the new aircraft, from today's ceremony, back through testing and manufacture.