United States Airforce- 4 Star General
The rank of General (or full general, or four-star general) is the highest rank normally achievable in the U.S. Air Force. It ranks above lieutenant general (three-star general) and below General of the Air Force (five-star general).
There have been 220 four-star generals in the history of the U.S. Air Force. Of these, 216 achieved that rank while on active duty, 3 were promoted after retirement, and one was promoted posthumously.