Which battled served as the major turning point in the war in the pacific for the us? this battle marked the first time that the us military stopped an aggressive japanese attack. the us military managed to destroy a significant number of ships in the japanese navy?

 The Battle of Midway, June 4-7, 1942.

Further detail:

The Battle of Midway was a "midway" point in the battle against Japan in the Pacific.  It allowed the United States, fighting for the Allies, to go from a defensive position to being on offense.  The battle was one fought mainly with aircraft, and the US was able to knock four of Japan's aircraft carriers out of commission while only losing one of their own aircraft carriers.  Japan's advance across the Pacific halted at Midway, and US forces began its own offensive to retake islands and ultimately pursue the war all the way to Japan itself.

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