Japanese and US carrier fleets at Coral Sea discovered each other in the morning, each closing in to attack. Japanese carrier Shokaku was damaged by 3 bombs at 1057 hours (223 casualties), while American carrier USS Lexington was hit by two bombs at 1120 hours (191 killed; would soon be lost) and American carrier USS Yorktown was hit by a bomb (66 casualties). Meanwhile at Port Moresby, an Australian cruiser force successfully defended itself against land-based aircraft attack as it blocked the Japanese invasion fleet for Port Moresby, New Guinea. As both sides withdrew due to damage and losses, the Japanese scored a tactical victory, but lost strategic momentum as the Port Moresby must now be delayed.
