The modern non-nuclear submarine is recognized to be a strongly effective denial and an intelligence of sea collecting of the capital and, in the right hands, a very provocative adversary for very the forces good-equipped with the anti-submarine war (ASM).

In the same way 26 years above, the experiment of Navy royal BRITISH (RN ) of the 1982 Falklands (Malvinas) are in conflict of being used as salutary recall in the way in which a difficult prey the conventional submarine can be.

Although it deployed large a taskforce equipped with a complete range of the possibilities of ASM, it did not detect San Luis, the simple standard 209 conventional submarine of Argentina deployed in the theatre.

It it is believed that only one defective system of ordering of shooting prevented the submarine from carrying out an attack successful on a frigate of RN actuating coastal narrow.