Imperial Ambitions and Early Efforts:
Mukden Incident and Manchukuo: Japan, controlled by its military, harbored imperial ambitions leading to the Mukden Incident and the takeover of Manchuria (Manchukuo).
New Order in East Asia: Japan sought to expand into Soviet Siberia, but after the German-Soviet Nonaggression Pact of 1939, it looked to Southeast Asia. U.S. sanctions on oil and scrap iron threatened Japan’s economy, prompting plans for military retaliation.
Germany’s Early Victories and Challenges:
Blitzkrieg Strategy: Germany swiftly subdued Poland with rapid tank divisions and air support, dividing it with the Soviets. This success led to the conquest of Denmark, Norway, the Netherlands, Belgium, and France.
Vichy France: Germany controlled northern France, while a pro-Nazi regime was set up in Vichy under Marshal Henri-Philippe Pétain.
British-American Relations and the Battle of Britain:
Support from the U.S.: Britain sought U.S. support, leading to the Destroyers-for-Bases Agreement (1940) and the Lend-Lease Act (1941). The Atlantic Charter set post-war goals like self-government and disarmament.
Battle of Britain: Germany’s air campaign aimed to weaken Britain, but the British military, using superior planes and radar, defended successfully, forcing Hitler to postpone invasion plans.
War on the Soviet Union:
Eastern Front: After failing to invade Britain, Hitler attacked the Soviet Union in June 1941, seeking Lebensraum. Initial success turned to struggle in harsh winters, featuring by the three-year Siege of Leningrad.
Japan Overreaches:
Pearl Harbor: Japan’s surprise attack on Pearl Harbor (December 1941) destroyed much of the U.S. Pacific Fleet, prompting U.S. retaliation. Japan then seized territories across Asia and the Pacific.
Global Conflict: The attack unified U.S. public opinion against Japan, leading to a global conflict with Britain and China joining the U.S. against Japanese aggression.
Home Fronts and Allied Strategies
Home Fronts:
U.S. Mobilization: The U.S. industrial sector ramped up war production, with women joining the workforce. “Rosie the Riveter” symbolized this shift.
Forced Labor in Germany: Germany used forced labor, including POWs and concentration camp inmates, leading to low productivity. Japan avoided mobilizing women but successfully rationed food and evacuated children.
Turning the Tide in Europe and the Pacific:
Allied Successes: In 1942, the Allies gained momentum. Britain defeated Rommel at El Alamein, and the Soviet counteroffensive won at Stalingrad. In the Pacific, victories at Coral Sea and Midway Island stopped Japanese advances.
Island-Hopping: The U.S. used island-hopping to attack weak Japanese positions, moving closer to Japan. Aircraft carriers and submarines were crucial to this strategy.
The Last Years of the War:
Italy and D-Day: In 1943, the Allies invaded Italy, leading to Mussolini’s fall. On D-Day (June 6, 1944), Allied forces launched a successful invasion of Normandy, advancing toward Paris and weakening German control.
Battle of the Bulge: Germany’s final offensive in winter 1944 failed, leading to Allied advances into Germany and the Soviet advance on Berlin.