may 4, 1942 - Battle of Coral Sea
In May 1st 1942, US Pacific Forces
led by Admiral Chester Nimitz clashed with the Japanese Navy making them unable to complete their plan from the Doolittle Raid. The battle turned out to be a turning point in the war as the Japanese navy lost its offensive power and a big amount of its military/navy to the US.
Added to timeline:
World War 2 timeline