The battle noted as the turning point in the Pacific Theater during World War II is the Battle of Midway, fought from June 4 to June 7, 1942. This pivotal naval battle resulted in a significant victory for the United States over Japan. The U.S. managed to sink four Japanese aircraft carriers while only losing one of its own, the USS Yorktown. The defeat severely diminished Japan's naval strength and strategic initiative in the Pacific, allowing the U.S. to transition from a defensive stance to a more aggressive campaign against Japanese forces, eventually leading to the Allied victory in the Pacific.