Foundation of the Spanish Legion.

For centuries, Spain recruited foreign soldiers to its army, forming the foreign regiments such as the Regiment of Hibernia. However, the specific unit of the Spanish Army and Spain's Rapid Reaction Force, now known as the Spanish Legion, and informally known as the Tercio or the Tercios, is a 20th-century creation. It was raised in the 1920s to serve as part of Spain's Army of Africa. The unit, which was established in January 1920 as the Spanish equivalent of the French Foreign Legion, was initially known as the Tercio de Extranjeros, the name under which it began fighting in the Rif War of 1921–1926.