ORDER OF BATTLE // July 31, 1905
Japanese invasion of Sakhalin
Estimated force strength by side, with confidence labels per surviving record.
Forces engaged
2 sides catalogued · combined 21,280 estimated
Japan
14,000
Medium-confidence figure
Russia
7,280
Medium-confidence figure
Battle context
The Japanese invasion of Sakhalin was the final land engagement of the Russo-Japanese War, concluded on July 31, 1905. Japan committed roughly 14,000 troops against a Russian force of approximately 7,280 defenders, inflicting around 3,270 Russian casualties. As the last land battle of the war, the seizure of Sakhalin strengthened Japan's negotiating position ahead of the Portsmouth Peace negotiations, which would formally end the conflict. Control of the island represented a tangible territorial gain secured in the war's closing weeks.
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