Did You Know? A Brief History of U.S. Air Force Uniforms When the U.S. Air Force became an independent branch in 1947, it did not immediately have its own uniforms. Airmen Royal Blue A line Off Shoulder Prom Dresses, Evening Dresses With Train, MP725 German Air Force Uniform Pants Used Chic Sheath Column One Shoulder Long Prom Dresses Elegant Royal Blue B Halter Neck Royal Blue Long Prom Dresses, Shiny Royal Blue Long Formal Eip Collection