What was the most successful doctrine developed in the interwar years? (Poll Closed) (poll 2625877)

What was the most successful doctrine developed in the interwar years? (Poll Closed)

German army blitzkrieg doctrine. It conguered Poland and France and proved very effective tactically against the Russians. 40% (6 votes)
American naval doctrine. Though not the main fleet element, the aircraft carrier TTP was excellent, and the doctrine quickly and easily adapted to the loss of the battleships at Pearl Harbor. 33% (5 votes)
USMC Amphibious doctrine. It successful secured every island objective that the USMC attacked. 13% (2 votes)
US Army Air Force Strategic Bombing. Destroyed much of the German national industry, diverted the entire Luftwaffe effort to defend Germany, and destroyed the German air force before D Day. 13% (2 votes)

Total Votes: 15

See this poll on: https://poll.fm/2625877/embed