RAFs Mildenhall and Lakenheath celebrate Air Force Birthday Published Sept. 13, 2010 By Airman 1st Class Lausanne Morgan 48 Fighter Wing Public Affairs ROYAL AIR FORCE MILDENHALL, England -- Attendees from both RAFs Mildenhall and Lakenheath celebrate the Air Force's 63rd birthday, Sept. 11, 2010. A ball is held each year to honor the past, present and future of the Air Force. View slideshow.