Fighting the war
The United States fought a two-front war in Europe and the Pacific, contributing to an Allied victory in 1945.
Grand strategy
The Allies, led by the US, Britain, and the Soviet Union, agreed on a 'Europe first' strategy, seeing Germany as the greatest threat, while holding the line in the Pacific. The Soviet Union bore the heaviest fighting against Germany, suffering an estimated 24-27 million deaths.
The Pacific turning point
After early Japanese victories, the US Navy won the Battle of Midway in June 1942, sinking four Japanese aircraft carriers, a turning point in the Pacific. American forces then 'island-hopped', capturing strategic islands such as Guadalcanal, Iwo Jima, and Okinawa, often at heavy cost.
North Africa and Italy
American troops first fought Germany in North Africa (Operation Torch, November 1942). The Allies then invaded Sicily and Italy in 1943. Mussolini was overthrown, though German forces kept fighting in Italy until 1945.
The Eastern Front
The Soviet victory at Stalingrad (1942-1943) was a turning point in Europe, destroying a German army. Soviet forces then pushed west toward Germany. The Eastern Front saw the largest and deadliest fighting of the war.
D-Day
On 6 June 1944, D-Day, Allied forces under General Dwight D. Eisenhower landed in Normandy, France, in the largest seaborne invasion in history, opening a western front. The Allies liberated Paris in August 1944 and repelled Germany's last major offensive in the Battle of the Bulge (December 1944-January 1945).
Victory in Europe
As Soviet forces reached Berlin, Hitler killed himself on 30 April 1945. Germany surrendered unconditionally, and 8 May 1945 was celebrated as V-E Day. Allied troops liberating concentration camps revealed the full horror of the Holocaust to the world.
The atomic bomb and Japan's surrender
The Manhattan Project developed the atomic bomb. After Roosevelt died in April 1945, President Harry Truman approved its use. The US dropped atomic bombs on Hiroshima (6 August 1945) and Nagasaki (9 August), killing well over 100,000 people, many instantly. The Soviet Union declared war on Japan on 8 August. Japan announced surrender on 15 August and formally signed on 2 September 1945.
Worked example
Historians debate the decision to use the atomic bomb. Supporters argue it ended the war quickly and avoided an invasion of Japan that could have cost many more lives on both sides. Critics argue Japan was near defeat, that the Soviet entry into the war mattered greatly, and that a demonstration or modified surrender terms might have worked. Evaluating the evidence is a classic historical debate.
Key takeaways
The Allies pursued 'Europe first'; the Soviet Union suffered the greatest losses. Midway (June 1942) turned the Pacific war; island-hopping followed. Americans fought in North Africa and Italy. Stalingrad turned the Eastern Front. D-Day (6 June 1944) opened the western front. Germany surrendered on V-E Day (8 May 1945). Atomic bombs on Hiroshima and Nagasaki and the Soviet entry preceded Japan's surrender in August 1945.
Flashcard
Allied strategy prioritising Germany
Check your understanding
Why is the Battle of Midway considered a turning point in the Pacific War?