1931–1941
Japan expanded across East Asia, occupying Manchuria and large parts of China while seeking control of vital resources throughout the Pacific.
7 December 1941
Japan launched a surprise attack on Pearl Harbor, bringing the United States into World War II and expanding the conflict across the Pacific.
1942–1944
Defeats at Midway, Guadalcanal, and other Pacific campaigns gradually shifted the strategic advantage to the Allied forces.
1945
The battles of Iwo Jima and Okinawa, combined with strategic bombing, left Japan’s military position increasingly unsustainable.
2 September 1945
Following the atomic bombings of Hiroshima and Nagasaki and the Soviet declaration of war, Japan formally surrendered, bringing World War II to a close.
Decode the turning point
Pacific War cipher
The 1942 naval battle that marked the beginning of Japan’s strategic decline in the Pacific was the Battle of ______.
The Battle of Midway (4–7 June 1942) resulted in the loss of four Japanese fleet carriers, ending Japan’s naval superiority and shifting the balance of power in the Pacific.
Decoded
Mission complete. Continue exploring the campaigns and decisions that shaped Japan’s role in World War II.


