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In page Long Yun:

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Long Yun participated in the anti-Qing struggle in its early years. First he joined the local warlord's army in 1911 and was gradually promoted to the rank of corps commander. He served in Tang Jiyao's Yunnan Army for years until February 1927, when he, together with Hu Ruoyu, launched a coup and expelled Tang from office. Soon after that he became 38th Army commander in the National Revolutionary Army, at the same time continuing as Yunnan chairman for more than a decade. [5]