However, its strategic situation and ability to continue the war were collapsing, which made surrender inevitable despite the apparent size of its empire.
Territories Still Under Japanese Control (August 15, 1945)
By the time Emperor Hirohito made his surrender broadcast, Japan still controlled:
In Asia:
- Korea (entire peninsula)
- Taiwan (Formosa)
- Manchuria (Manchukuo)
- Large parts of China: including much of northern and eastern China, plus major cities like Beijing, Tianjin, Nanjing, and Shanghai.
- Parts of Indochina (northern Vietnam under Japanese control since 1940, fully occupied in March 1945).
- Burma (Myanmar): retreating but still holding parts of northern Burma.
- Thailand: an ally/client state, not directly occupied.
- Malaya (including Singapore)
- Indonesia (Dutch East Indies): most of the archipelago still under Japanese control.
In the Pacific:
- Sakhalin (southern half)
- Kuril Islands
- Many Pacific islands (though most outer islands were cut off and bypassed by Allied advances)
In other areas:
- Hong Kong
- Andaman and Nicobar Islands (Indian Ocean)
Why They Surrendered Despite This?
From a map view, the Japanese Empire still looked massive. But this was deceptive, by August 1945, Japan was militarily, economically, and strategically defeated:
Economic Collapse
- Allied naval blockade cut off fuel, raw materials, and food imports.
- Industry was paralyzed, Japan had no oil for its navy and air force.
- Starvation was beginning in the home islands.
Military Situation
- Japan’s navy was destroyed; it couldn’t defend its sea lanes.
- Its air force was mostly grounded from lack of fuel and planes.
- Allied bombing had flattened most major cities.
- Soviet Union entered the war on August 8, 1945, launching a massive invasion of Manchuria, Korea, and Sakhalin, overwhelming Japanese forces there within days.
Atomic Bombs
- Hiroshima (Aug 6) and Nagasaki (Aug 9) were destroyed by atomic bombs.
- Japan’s leaders feared more atomic strikes would annihilate other major cities — they had no defence against this.
Loss of Strategic Hope
- Japan’s war plan relied on negotiating a settlement from a position of strength. By August 1945:
- The U.S. was preparing to invade Kyushu (Nov 1945) and Honshu (spring 1946), operations expected to destroy Japan completely.
- The Soviet entry removed Japan’s last hope of using Moscow as a mediator for peace.
- Leaders feared that if they delayed, they might lose the Emperor system entirely in an unconditional surrender.
Bottom Line
Japan surrendered not because it had lost every inch of territory, but because:
- Its military power to defend those territories was gone.
- Its supply lines were cut and resources exhausted.
- Atomic bombs and Soviet entry made further resistance suicidal.
- Leaders sought to preserve the Emperor and avoid total destruction.
And finally here’s a map showing just how much land they’d lost compared to 3 years earlier:
Also see: Map of All Axis Forces in Europe On January 1st 1945 and May 8th 1945.
vorpal says
Misleading – it wasn’t Japan’s territory to lose in the first place – they grabbed it for a short period during their war of aggression against its neighbours