He gained the titles of Pasha and Marshal and, in 1873, was made commander of the Second Army Corps, holding the position until 1876.
During the period of May 1898 until Mar 1899, he commanded the 2nd Division of the Second Corps of the US Army at Camp Alger Virginia, Thoroughfare Gap Virginia, Camp Meade Pennsylvania, and Camp Fornance South Carolina.
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A Brigade of the First Division, Second Army Corps to Camp Marion, Summerville, South Carolina.
After the outbreak of the Wuchang Uprising of 1911 against the Qing Dynasty, Duan commanded the loyalist Second Army Corps against the revolutionary army in the Battle of Yangxia and succeeded in taking back Hankou and Hanyang.