Operation Algeciras was a foiled Argentine plan to sabotage a Royal Navy warship in Gibraltar during the Falklands War. The Argentine reasoning was that if the British military felt vulnerable in Europe, they would decide to keep some vessels in European waters rather than send them to the Falklands.
Gibraltar
A frogman is someone who is trained in scuba diving or swimming underwater in a tactical capacity that includes military, and in some European countries, police work. Such personnel are also known by the more formal names of combat diver, combatant diver, or combat swimmer. The word frogman first arose in the stage name the "Fearless Frogman" of Paul Boyton in the 1870s and later was claimed by John Spence, an enlisted member of the U.S. Navy and member of the OSS Maritime Unit, to have been applied to him while he was training in a green waterproof suit.
A SEAL Delivery Team member climbs aboard a delivery vehicle before launching from the back of the submarine USS Philadelphia.
A 1945 British navy frogman with complete gear, including the Davis apparatus, a rebreather originally conceived in 1910 by Robert Davis as an emergency submarine escape set.
A French frogman with chest counterlung loop rebreather with two breathing tubes (model "Oxygers", 1957).
Royal Navy divers in Sladen suits during World War II