Air force ensign


An air force ensign is a flag used by a national air force.
With the creation of independent air forces in the first half of the 20th century, a range of distinguishing flags and ensigns were adopted. Such flags may often feature a roundel in the national colours.
Notable examples include:

Historic air force ensigns

Air force flags

Some countries, such as the United States, designate their national air force standards as flags not ensigns. See the Flag of [the United States Air Force] for an example.