The first encirclement campaign against the Honghu Soviet was an encirclement campaign launched by the Chinese Nationalist Government that was intended to destroy the Communist Honghu Soviet and its Chinese Red Army. The Red Army successfully defended their soviet republic against the Nationalist attacks from early December 1930 to the end of January 1931.
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Text from the Wikipedia article “First Encirclement Campaign against Honghu Soviet”, available under CC BY-SA 4.0.