Air University Library - Today in 1947, President Harry Truman signed the National Security Act of 1947. This restructured several governmental organizations, including the separation of the Army Air Forces from the
![United States Air Force Band, Singing Sergeants, Ceremonial Brass, Strolling Strings, Airmen of Note, High Flight, Silver Wings, Lowell E. Graham - U.S. Air Force 1947-1997: Your Nation's Air Force 50th Anniversary ( United States Air Force Band, Singing Sergeants, Ceremonial Brass, Strolling Strings, Airmen of Note, High Flight, Silver Wings, Lowell E. Graham - U.S. Air Force 1947-1997: Your Nation's Air Force 50th Anniversary (](https://m.media-amazon.com/images/I/81mmdyyKmQL._UF1000,1000_QL80_.jpg)
United States Air Force Band, Singing Sergeants, Ceremonial Brass, Strolling Strings, Airmen of Note, High Flight, Silver Wings, Lowell E. Graham - U.S. Air Force 1947-1997: Your Nation's Air Force 50th Anniversary (
![Sabre to Stealth: 50 Years of the United States Air Force, 1947-1997: MARCH, Peter R.: 9781577231905: Amazon.com: Books Sabre to Stealth: 50 Years of the United States Air Force, 1947-1997: MARCH, Peter R.: 9781577231905: Amazon.com: Books](https://m.media-amazon.com/images/I/71JmUd8fvNL._AC_UF1000,1000_QL80_.jpg)
Sabre to Stealth: 50 Years of the United States Air Force, 1947-1997: MARCH, Peter R.: 9781577231905: Amazon.com: Books
1943-1947 - Struggle for Air Force Independence > Air Force Historical Support Division > Fact Sheets
![Thunderbirds on X: "Established September 18, 1947 today, the United States Air Force celebrates 76 years of air power. Happy Birthday, Air Force!🇺🇸 https://t.co/KUJ8vUlVf4" / X Thunderbirds on X: "Established September 18, 1947 today, the United States Air Force celebrates 76 years of air power. Happy Birthday, Air Force!🇺🇸 https://t.co/KUJ8vUlVf4" / X](https://pbs.twimg.com/media/F6T6SjIW4AAYHxY.jpg:large)