Indian Ocean raid
In the Indian Ocean raid of March–April 1942, aircraft from "Shōkaku", along with the rest of "Kido Butai", attacked Colombo, Ceylon on 5 April, sinking two ships in harbor and severely damaging support facilities. The task force also found and sank two Royal Navy heavy cruisers, ( and ), on the same day, as well as the aircraft carrier on 9 April off Batticaloa.