The first encirclement campaign against the Eyuwan Soviet was an encirclement campaign launched by the Chinese Nationalist Government against the Eyuwan Soviet, a Communist base located in the border region between Hubei, Henan, and Anhui provinces. The Fourth Red Army responded with its first counter-encirclement campaign and successfully defended the soviet. The Nationalist attacks lasted from November 1930 to 9 March 1931.
See also Chinese Civil War Outline of the Chinese Civil War National Revolutionary Army Chinese Red Army Encirclement campaigns against the Eyuwan Soviet Second encirclement campaign against the Eyuwan Soviet Third encirclement campaign against the Eyuwan Soviet Fourth encirclement campaign against the Eyuwan Soviet Fifth encirclement campaign against the Eyuwan Soviet
References Military History Research Department, Complete History of the People's Liberation Army, Military Science Publishing House in Beijing, 2000,
zh:豫鄂皖邊區第一次圍剿