From May to September 1939, the USSR and Japan fought an undeclared war involving over 100,000 troops. It may have altered world history. In the summer of 1939, Soviet and Japanese armies clashed on ...
In the summer of 1939, Soviet and Japanese armies clashed on the Manchurian-Mongolian frontier in a little-known conflict with far-reaching consequences. No mere border clash, this undeclared war ...
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