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What WEBF has not mentioned is that during WW2 the Royal Navy lost no less than 10 Aircraft Carriers due to Enemy Action. Those losses were sustained in a era where "Guided Weapons" existed only in Science Fiction.
1939 HMS Courageous
1940 HMS Glorious
1941 HMS Ark Royal, HMS Audacity
1942 HMS Avenger, HMS Eagle, HMS Hermes
1943 HMS Dasher
1944 HMS Nabob
1945 HMS Thane