国民军（亦称西北军）爱国将领冯玉祥在中国共产党帮助下举行的五原誓师，是一件震惊中外的历史事件。1926年8月初，正当北伐战争成败的关键时刻，冯玉祥在中共党员刘伯坚和苏联顾问乌斯马诺夫等的陪同下，由莫斯科回国。当晚召集退驻五原的国民军诸将领鹿钟麟、宋哲元、方振武 The Wuyuan Overseer who was helped by the Chinese Communist Party with the patriotic general Feng Yuxiang of the Nationalist Army (also known as the Northwest Army) is a historical incident that has shocked both China and foreign countries. In early August 1926, at the crucial moment of the success or failure of the Northern Expedition, Feng Yuxiang returned to Moscow with the help of Communist Party member Liu Bojian and Soviet Union adviser Usmanov. In the evening, he called Comorian dean Lv Zhonglin, Song Zheyuan and Fang Zhenwu who resigned in the original five