The US military made significant contributions to the Allied war effort in both the European and Pacific theatres of the war. In Europe, the US provided vital supplies and equipment to the Allied forces, such as food, ammunition, and vehicles. The US also provided direct military support, such as troops, ships, and aircraft. US forces played a key role in the liberation of Europe from Nazi control, including the landings in Normandy and the liberation of Paris.
In the Pacific, the US military played a decisive role in defeating the Japanese. The US Navy, with its superior numbers and advanced technology, inflicted a series of defeats on the Japanese navy, culminating in the Battle of Midway in June 1942. The US also conducted a series of island-hopping campaigns, gradually advancing towards the Japanese home islands. The US military also used its air power to conduct bombing raids on Japanese cities, including the atomic bombings of Hiroshima and Nagasaki in August 1945, which ultimately led to the Japanese surrender.
In addition to its military contributions, the US also provided crucial economic and financial support to the Allied powers. The US provided loans, grants, and supplies to its allies, helping to sustain their economies and war efforts. The United States also played a key role in the post-war reconstruction and rebuilding of Europe and Japan.
Overall, the US interventionism in World War 2 was critical in turning the tide of the war in favour of the Allied powers, contributing significantly to the defeat of Nazi Germany and Japan. The United States emerged from the war as a global superpower, with a profound impact on the post-war world.