Heihe, in China's Heilongjiang province, bordering Russia, was part of a Japanese puppet state known as Manchukuo in the area of Manchuria at that time.
黑河位于中国黑龙江省，与俄罗斯接壤，当时是日本伪满洲国的一部分。
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Today, I happened to be the National Day period of time can be used again for understanding some of the Manchukuo Palace.