Location
Lat 49 19' N Long 110 39' E  Located in eastern Mongolia. Situated on the Kerulen River, 180 miles east of Ulaanbaatar, at a major major between Ulaanbaatar and Choybalsan.

Öndörhaan Airfield (Undur Khan)
Wartime airfield

Wartime History
Soviet and Mongolian forces were based here during May 1939, prior to the Battle of Khalkhin Gol / Nomonhan Incident.

Soviet Forces based at Öndörhaan
11th Tank Brigade (BT Tanks)
3rd Tank Brigade
3rd Cavalry Division (Mongolian)

Today
A small settlement with a population of 18,003 in 2000. Provincial capital of Khentii Province

References
Nomonhan Japanese-Soviet Tactical Combat page 2 (map)

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Last Updated
March 20, 2022