Operation Chahar
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Operation Chahar, known in Chinese as the Nankou Campaign, occurred in August 1937, following the Battle of Beiping-Tianjin at the beginning of Second Sino-Japanese War.
Chinese soldiers, pictured by the Great Wall of China in Laiyuan in 1937
Mengjiang
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Mengjiang, also known as Mengkiang, officially the Mengjiang United Autonomous Government, was an autonomous zone of the Wang Jingwei regime in Inner Mongolia. It was formed in 1939 as its own puppet
Demchugdongrub (left)
Foundation ceremony of Mengjiang's government
One-yuan banknote issued by the Bank of Mengjiang, 1940
A 1943 postage stamp of Mengjiang