This document provides an overview of how the Battle of Midway was a turning point in World War 2 for the United States against Japan. The battle occurred in May 1942, when the Japanese sought to invade Midway Island to attack Hawaii. However, the US intercepted Japanese communications and laid a counterattack. The US Navy defeated the Japanese carriers at Midway, inflicting severe losses. This psychological shocked Japan and marked the decline of the Japanese naval forces, shifting the strategic momentum in the Pacific War in favor of the United States.