The modern USAF was established on September 18th, 1947 following the conclusion of World War 2 but maintains a history as far back as 1907. Prior to 1947, the USAF operated as the 'United States Army Air Forces' (USAAF) and the service contributed to both World War 1 and the Second World War. The modern Air Force has seen major combat actions since the Korean War and fields a variety of aircraft to cover all manner of mission types. Formally, USAF rank abbreviations are not displayed with an ending period. Additionally, the USAF does not maintain a 'First Sergeant' rank common to other branches of American military service. Instead, the rank is denoted by the special addition of a diamond within the insignia and observed as a duty / job title. Similarly, the diamond is replaced by a star for the Chief Master Sergeant and Command Chief Master Sergeant ranks. Note: The Five Star rank is generally reserved for wartime but is also bestowed as an honorary rank in some cases.
Insg.
Title
The 18th ASOG's squadrons are the 18th Weather Squadron, the 14th Air Support Operations Squadron, the 15th Air Support Operations Squadron, the 19th Air Support Operations Squadron, the 20th Air Support Operations Squadron and the 818th Operations Support Squadron.
NONE
Airman Basic
Airman
Airman First Class
Senior Airman
Staff Sergeant
Technical Sergeant
Master Sergeant
Master Sergeant (w Diamond)
Senior Master Sergeant
Senior Master Sergeant (w Diamond)
Chief Master Sergeant
Chief Master Sergeant (w Diamond)
Command Chief Master Sergeant
Chief Master Sergeant of the Air Force
Insg.
Title
Second Lieutenant
First Lieutenant
Captain
Major
Lieutenant Colonel
Colonel
Brigadier General
Major General
Lieutenant General
General Air Force Chief of Staff
General of the Air Force