Maritime Service of the Civil Guard (Spain)

The Maritime Service of the Civil Guard, also known by its acronym SEMAR or, unofficially, as Civil Guard of the Sea, is the unit of the Civil Guard dedicated to the surveillance of Spanish territorial waters. It was constituted by a Royal Decree of February 22, 1991. Since 1997 the Underwater Activities Unit (UAS) has been integrated into it, whose origin dates back to 1981.