This document examines the critical role of air power in countering the German U-boat threat during World War II, particularly in the European theater. It details how the U.S. Army Air Forces contributed to antisubmarine warfare alongside the Royal Navy, the Royal Air Force Coastal Command, and the U.S. Navy, emphasizing the importance of aerial reconnaissance and long-range patrols in disrupting enemy submarine operations. The text discusses key tactical adaptations, including the deployment of B-24 Liberators equipped with radar and magnetic anomaly detection systems to locate and attack surfaced U-boats. It highlights pivotal campaigns such as air patrols over the Bay of Biscay and convoy escort missions in the North Atlantic, illustrating how air power forced German submarines to remain submerged for prolonged periods, reducing their effectiveness. The analysis also explores strategic bombing operations targeting submarine pens and manufacturing facilities, ultimately contributing to the diminished operational capacity of Hitler’s U-boat fleet. The document provides insight into the technological advancements, coordinated Allied strategies, and evolving aerial tactics that shaped the outcome of the Battle of the Atlantic.