What event has a feature that has been described as "the first major military campaign fought entirely by air forces"?
Battle of Britain The Battle of Britain (German: "Luftschlacht um England" , literally "the air battle for England") was a military campaign of the Second World War, in which the Royal Air Force (RAF) defended the United Kingdom (UK) against large-scale attacks by the German Air Force (Luftwaffe). It has been described as the first major military campaign fought entirely by air forces.
Action of 23 August 1967 The Action of 23 August 1967 was a major air battle which involved elements of the Vietnam People's Air Force (VPAF) and the United States Air Force (USAF). The air battle took place over the skies of North Vietnam as part of Operation Rolling Thunder, during the Vietnam War.