Royal Air Force
From Memory Alpha, the free Star Trek reference
The Royal Air Force, or RAF, was the United Kingdom's primary air defense force in the 20th and 21st centuries and the first air force to be established in pre-war Human history. Among the feats the RAF achieved was securing British airspace against German air supremacy, preventing a ground invasion during World War II. The most notable battle in this campaign was the Battle of Britain.
Miles O'Brien and Julian Bashir routinely used a holodeck program that allowed them to partake in the Battle of Britain as RAF pilots. (DS9: "Homefront")
In the Hirogen World War II holodeck simulation set in 1944, Commander Chakotay (as Captain Miller), suggested calling in the RAF to bomb a German military installation, which was in fact an breach in the holodeck to the rest of the USS Voyager. (VOY: "The Killing Game, Part II")
