In the Aleutian Islands… The Japanese land a small force on Kiska Island.

In the Pacific… The Battle of Midway. Admiral Yamamoto considers engaging in a surface battle against the US carrier fleet, but decides to retreat instead. The loss of the main portion of the Japanese carrier fleet and their aircraft pilots in the battle on June 4th has robbed the Japanese of the initiative in the naval battle in the Pacific. Also of importance is the use of code-breaking by the Americans to intercept Japanese planning. Prior knowledge of Japanese intentions at Midway allowed the Americans to prepare a trap.