The Russo-Japanese War was fought between the Russian Empire and the Empire of Japan from 1904 to 1905.

The main cause of the Russo-Japanese War was the territorial disputes between Russia and Japan in Manchuria and Korea.

The Russo-Japanese War took place from February 8, 1904, to September 5, 1905.

The Russo-Japanese War ended with a Japanese victory.

The Treaty of Portsmouth was signed in Portsmouth, New Hampshire, USA.

The main negotiators of the Treaty of Portsmouth were Theodore Roosevelt, President of the United States, Sergei Witte, Russian Minister of Finance, and Komura Jutaro, Japanese Minister of Foreign Affairs.

The main terms of the Treaty of Portsmouth included Russia ceding southern Sakhalin to Japan, Russia recognizing Japan's control over Korea, and Russia agreeing to withdraw its troops from Manchuria.

The Treaty of Portsmouth had several significant outcomes, including ending the Russo-Japanese War, establishing Japan as a major power in East Asia, and leading to the formation of the Anglo-Japanese Alliance.

The Treaty of Portsmouth had a significant impact on the balance of power in East Asia, strengthening Japan's position in the region, weakening Russia's influence, and leading to increased tensions between Japan and China.

The Treaty of Portsmouth did not have a direct long-term impact on the outbreak of World War I, the Russian Revolution of 1917, or the Cold War.

Japan emerged as the dominant power in East Asia after the Treaty of Portsmouth.

President Theodore Roosevelt played a crucial role in negotiating the Treaty of Portsmouth by mediating between Russia and Japan, pressuring Russia to accept Japan's terms, and providing financial assistance to Japan.

The Treaty of Portsmouth had a significant impact on the global balance of power, shifting it in favor of Japan, weakening the Russian Empire, and leading to the formation of new alliances.

The Treaty of Portsmouth had several consequences for Russia, including the loss of territory and influence in East Asia, domestic unrest and economic difficulties, and the obligation to pay reparations to Japan.

The Treaty of Portsmouth played a significant role in the rise of Japan as a major power by granting it control over Korea and southern Sakhalin, establishing it as a regional military power, and expanding its economic influence in East Asia.