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What are the possibilties/chances of the British either inflicting a defeat on the Kido Butai during the IJNs indian ocean raid of April 1942, (By defeat I mean anything from 1 carrier being lost up to a Midway style victory I know the last is improbable) or the british inflicing much heavier losses on the carrier air groups during their raids on Ceylon.
What would the long term effects of this be? The nost obvious would be the butterflying away of the coral sea/ Midway battles.