# Russo-Japanese War begins (1904)

URL: https://history-japan.com/timeline/1904-russo-japanese-war-begins
Location: Japan
Categories: battle

Japan attacked Russian naval forces at Port Arthur as rivalry over Korea and Manchuria turned into war. Major land and naval battles followed. The 1905 Portsmouth settlement recognized significant Japanese gains but also provoked domestic discontent over its terms.

Ruler at the time: [Katsura Taro](https://history-japan.com/rulers/katsura-taro-1901)

## Sources
- [en.wikipedia.org](https://en.wikipedia.org/wiki/Russo-Japanese_War)