護国戦争
Reacting to Yuan's growing authoritarianism, the southern provinces rebelled in 1913 but were effectively crushed by Beiyang forces. Civil governors were replaced by military ones. In December 1915 Yuan made clear his intentions to become emperor of China and found a new dynasty. The southern provinces rebelled again in the National Protection War; but this time the situation was far more serious because most Beiyang commanders refused to recognize the monarchy. Yuan renounced his plans for restoring the monarchy to woo back his lieutenants, but by the time he died in June 1916 China was fractured politically. The North-South split would persist throughout the entire Warlord Era.