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Pacific War
Pacific War title image (No Napoleon)
Date 1904 – 1906
Location Manchuria, Yellow Sea, Korean Peninsula, Pacific Ocean, briefly North America
Result Treaty of Tokyo
  • China withholds Manchuria
  • Japan gains Korea, Taiwan and half of Sakhalin
  • Hawaii is returned to Canada
Flag of Russia (neon) Russian Empire

Flag of the Qing dynasty (1889-1912) Qing China
Flag of Korea 1882 Korean Empire
Supported by:
Flag of the United Kingdom United Kingdom

Flag of Prussia (1892-1918) Kingdom of Prussia

Merchant flag of Japan (1870) Empire of Japan

Flag of France Republic of France

The Pacific War (Russian: Тихоокеанская Война Tikhookeanskaya Voyna, Japanese: 太平洋戦争 Taiheiyōsensō) was the first great war of the 20th century. It grew over the Japanese imperial ambitions of Japan, China and Russia. Soon, France, an ally of Japan, had joined the war, which drew British support (from mainly Canada), and the war grew into a war of the Pacific.

While the war had no clear winner, the main objective of the war (to maintain Chinese Manchuria) was found in favour of the Russo-Chinese alliance. However, Japan and France had succeeded in several theaters such as in Korea, Taiwan, Sakhalin, Hawaii, Fiji and Prussian New Guinea. Many of the latter islands that had been captured were returned as part of the treaty.

The war was the first in the 20th century, and the largest and most costly thus far. It had detailed the problems of two major differing alliances and its affects on war, ultimately being a factor for World War I.


Theaters of the war

Pacific War map (No Napoleon)

Map of the Pacific, 1904



Sakhalin and Kamchatka

Prussian New Guinea


Nicaraguan Canal


Lowering British flag, Pacific War (No Napoleon)

Lowering of the British flag, which was soon replaced with a French one

The French government recognized the British threat in the war from early on. The islands of Hawaii, of which were organized into a flourishing territory of the Dominion of Canada, were recognized for their use of docking ships and reloading to attack the Franco-Japanese islands. Because of this, France found it to be important to handle the islands in a way that would cause the truce or surrender of the Canadians, taking them out of the war and anticipated the subsequent surrender of the British. During a meeting with the emperor of Japan, the two nations decided that a bombardment of the islands was in their best interest.

In late September of 1905, Japanese and French ships had arrived in Big Island. A violent battle between the ships had begun, and there was little time for reinforcement due to its unexpected nature (most of the naval aid had gone to Burma at the time). The citizens of the island, along with the ships, had surrendered to the troops, and a joint French-Japanese occupation of the island had begun.