On a blue disk 2 1/2 inches in diameter with a 1/8 inch red border, the letters AF in white, all members 3/16 inches in width, the outside outlines of the letters conforming to the circular outline.
The colors red, white and blue represents the colors of the United States and Britain. The letters are the abbreviation for Allied Force.
The insignia was approved on May 14, 1943. It was authorized for wear by members of Allied Force Headquarters (American and British) and by personnel of separate units assigned to Headquarters Command or Allied Force Headquarters.