The Third Air Force (Air Forces Europe) (3 AF) is a numbered air force of the United States Air Forces in Europe - Air Forces Africa (USAFE-AFAFRICA). Its headquarters is Ramstein Air Base, Germany. It is responsible for all U.S. air forces in Europe and Africa, and operations and support activities in the U.S. European Command and U.S. Africa Command's areas of responsibility. It also has a unique mission as the U.S. military's primary liaison to the British government, which is conducted through the command's 3 AF-UK headquarters at RAF Mildenhall, England.

Royal Air Force Mildenhall, or more simply RAF Mildenhall, is a Royal Air Force station located near Mildenhall in Suffolk, England. Despite its status as a Royal Air Force station, it primarily supports United States Air Force (USAF) operations, and is currently the home of the 100th Air Refueling Wing.