Battle of Ayacucho own. The royalists in each viceroyalty, however, took different paths. In New Spain, royalists, after defeating the insurgents, proclaimed a negotiated separation from Liberal Spain through the Plan of Iguala, which they negotiated with the remaining patriots, and the Treaty of Córdoba, which they negotiated with the new head of government, Juan O'Donojú. In Peru Viceroy Joaquín de la Pezuela was discredited after a royalist expedition to Chile under Mariano Osorio was defeated and advances in Peru were made by José de San Martín. The viceroy was overthrown on 29 January 1821, in Asnapukyu "(Aznapuquio)", in a coup by General
Army of the Han dynasty led a force to Wusun and resolved a dispute. In 6 AD, a petty king in the area of the former Jushi Kingdom defected to the Xiongnu, who turned him over to the Han. In 7 AD, the Han convinced the Wuhuan to stop sending tribute to the Xiongnu, who immediately attacked and defeated the Wuhuan. In 9 AD, Wang Mang proclaimed himself emperor of the Xin dynasty. In 10 AD, some officers of the Protector General Dan Qin rebelled, slew him, and fled to the Xiongnu. In 16 AD, an army under Li Chong and Guo Qin was sent