Cod Wars Third Cod War (November 1975 – June 1976) began after Iceland again extended its fishing limits, now to from its coast. The British government did not recognise the large increase to the exclusion zone and so an issue occurred with British fishermen and their activity in the disputed zone. The conflict, which was the most hard-fought of the Cod Wars, saw British fishing trawlers have their nets cut by the Icelandic Coast Guard, and there were several incidents of ramming by Icelandic ships and British trawlers, frigates and tugboats. One of the most serious incidents occurred on 11 December 1975.
Cod Wars passage of Soviet submarines while the Royal Navy was threatened by further serious defence and naval cuts by the Royal Navy's chief "bête noire", the Chancellor of Exchequer and former Minister of Defence, Denis Healey. The Royal Navy saw its strategic aim at the time to be as much as fighting Healey as the Soviet Navy. The Second and Third Cod Wars were necessary wars for the Royal Navy, like the Falklands Operation, six years later. To Crosland, also MP for the trawler port of Grimsby, the third war was a more serious threat to the Western Alliance than the