Do not abbreviate except in headlines. Capitalize when referring to U.S. forces: the U.S. Air Force, the Air Force, Air Force regulations. Do not use the abbreviation USAF. Use lowercase for the forces of other nations: the Israeli air force.
Branding
Do not abbreviate except in headlines. Capitalize when referring to U.S. forces: the U.S. Air Force, the Air Force, Air Force regulations. Do not use the abbreviation USAF. Use lowercase for the forces of other nations: the Israeli air force.