History of the Royal Navy the GIUK gap. In the North Atlantic, the United Kingdom became engaged in a protracted dispute with Iceland over fishing rights. The Royal Navy, supported by tugs from the MAFF and British civilian trawlers, was involved in three major confrontations with the Icelandic Coast Guard from 1958 to 1976. These largely bloodless incidents became known as the Cod Wars, and ended with the recognition by Britain of Iceland's exclusive 200 nautical miles fishery zone. Chatham Naval Base was used for refitting nuclear submarines from 1963 but it closed in 1984. The most important operation conducted predominantly by the Royal Navy
USS Cod use the same vertical ladders and hatches that were used by her crew. Cleveland can claim partial credit as "Cod"'s birthplace, since the submarine's five massive diesel engines were built at the General Motors Cleveland Diesel plant on Cleveland's west side. In addition, she also has unique attractions such as the 5 inch deck gun that still can be rotated by visitors and mock fired by "Cod"s volunteer crew. The "Cod" 's Mark IV Torpedo Data Computer is also fully restored, as well as other various parts on the submarine. The "Cod" memorial acquired two General Motors Model 248 engines