(From the Squadron supplier:) The 51st Fighter Wing is a wing of the US Air Force and the host unit at Osan Air Base, South Korea. The wing has been based in the Far East since 1948, with a short interruption in 1971. It flew operations as the 51st Fighter-Interceptor Wing during the Korean War. This is the black-yellow version of the 51st Fighter Wing patch that says “LEADING THE CHARGE” and does not come with velcro attached.