Who gave allies advantage in the Pacific?

The Allies gained a significant advantage in the Pacific during World War II primarily through key victories in battles such as Midway and Guadalcanal. The breaking of Japanese codes allowed Allied forces to anticipate and counter Japanese strategies effectively. Additionally, the industrial capacity of the United States enabled the rapid production of ships and aircraft, strengthening the Allied presence in the region. Combined with successful joint operations and strategies, these factors collectively turned the tide in favor of the Allies in the Pacific theater.