The Liberal Wars, also known as the War of the Two Brothers, was a war between liberal constitutionalists and conservative traditionalists in Portugal over royal succession that lasted from 1832 to 1834. Embroiled parties included the Kingdom of Portugal, Portuguese rebels, the United Kingdom, France, the Catholic Church, and Spain.

Portugal, officially the Portuguese Republic, is a country located on the Iberian Peninsula, in Southwestern Europe, and whose territory also includes the Macaronesian archipelagos of the Azores and Madeira. It features the westernmost point in continental Europe, its mainland west and south border with the North Atlantic Ocean and in the north and east, the Portugal-Spain border constitutes the longest uninterrupted border-line in the European Union. Its archipelagos form two autonomous regions with their own regional governments. In the mainland, Alentejo region occupies the biggest area but is one of the regions in Europe with a lower population density. Lisbon is the capital and largest city by population, being also the main spot for tourists alongside Porto and Algarve.