The Royal Guard is an independent regiment of the Spanish Armed Forces that is dedicated to the protection of the King of Spain and members of the Spanish royal family. It currently has a strength of 1,500 troops. While the Guard participates in parades and other ceremonial events, it is a fully functional combat unit. Its members are recruited from the ranks of all three branches of the Spanish Armed Forces and receive the same combat training as regular soldiers.

The Spanish Armed Forces are in charge of guaranteeing the sovereignty and independence of the Kingdom of Spain, defending its territorial integrity and the constitutional order, according to the functions entrusted to them by the Constitution of 1978. They are composed of: the Army, the Air and Space Force, the Navy, the Royal Guard, and the Military Emergencies Unit, as well as the so-called Common Corps.