セイロン沖海戦
The Easter Sunday Raid was an air attack on Colombo, Ceylon during the Indian Ocean raid by carrier-based aircraft of the Imperial Japanese Navy on 5 April 1942. The Japanese objective was to destroy the Ceylon-based British Eastern Fleet in harbour. The British preemptively dispersed shipping from the harbours before the attacks due to advance warning from intelligence in March 1942, and air reconnaissance during the raid.