Every year on August 1st is the army day of the Chinese people's liberation army, therefore also called "bayi army day". Whose origin is: 2 in the morning on August 1, 1927, the former enemies committee headed by zhou enlai, he long, ye ting, zhu DE, liu and other leaders of the northern expedition of 20000 people. In nanchang of jiangxi province held an armed uprising, started armed opposition kuomintang reactionaries first gun of the communist party of China, is the beginning of the independent leadership of the communist party of China armed struggle.

In April 1928, zhu DE, Chen yi led the preservation of the nanchang uprising with MAO led the autumn harvest uprising troops in jinggangshan stationed, formal form the fourth army of the Chinese revolutionary army of workers and peasants. On June 30, 1933, the central revolutionary military commission decision: each year on August 1, anniversary of the red army of workers and peasants in China. In the same year on July 11, the Chinese Soviet republic temporary central government approved the decision. From then on, "bayi" has become China's people's liberation army (PLA) army day.

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每年八月一日是中国人民解放军建军纪念日，因此也叫“八一”建军节。其来历是：1927年8月1日凌晨2时，以周恩来为首的前敌委员会和贺龙、叶挺、朱德、刘伯承等领导的北伐部队2万人。在江西南昌举行了武装起义，打响了中国共产党武装反抗国民党反动派的第一枪，是中国共产党独立领导武装斗争的开始。

1928年4月，朱德、陈毅率领保存下来的南昌起义军与毛泽东领导的秋收起义部队在井冈山会师，正式组成了中国工农革命军第四军。1933年6月30日，中央革命军事委员会决定：每年8月1日为中国工农红军纪念日。同年7月11日，中华苏维埃共和国临时中央政府批准了这个决定。从此，“八一”成了中国人民解放军的建军节。