The Battle of Ayacucho was a decisive military encounter during the Peruvian War of Independence. This battle secured the independence of Peru and ensured independence for the rest of South America. In Peru it is considered the end of the Spanish American wars of independence in this country, although the campaign of Antonio José de Sucre continued through 1825 in Upper Peru and the siege of the fortresses Chiloé and Callao eventually ended in 1826.

The royalists were the people of Hispanic America and Europeans that fought to preserve the integrity of the Spanish monarchy during the Spanish American wars of independence.