Russo-Japanese War (1904–1905): Russia vs. Japan

Conflict Overview

The Russo-Japanese War (1904–1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and Korea.

Key Points

• First major war where an Asian power defeated a European power in modern times.
• Battles: Port Arthur, Mukden, Tsushima Strait.
• Outcome: Treaty of Portsmouth (mediated by Teddy Roosevelt); Japan gained southern Sakhalin, lease of Liaodong Peninsula, recognition of paramount interest in Korea.
• Impact: Shocked Europe; boosted Japanese prestige; contributed to 1905 Russian Revolution.