Military history of Iceland called the Icelandic Cod Wars (Icelandic: "Þorskastríðin", "the cod war", or "Landhelgisstríðin", "the war for the territorial waters"), were a series of three confrontations from the 1950s to the 1970s between the United Kingdom and Iceland over fishing rights in the North Atlantic. The First Cod War lasted from 1 September until 12 November 1958. It began as soon as a new Icelandic law that expanded the Icelandic fishery zone from , came into force at midnight of 1 September. After a number of rammings and a few shots fired between the Royal Navy and Icelandic patrol boats, Britain and
Fishing in the North Sea the 19th century large quantities of herring were produced in Scotland. Today mainly mackerel, Atlantic cod, whiting, coalfish, European plaice, and sole are caught. In addition, common shrimp, lobster, and crab, along with a variety of shellfish are harvested. In recent decades, overfishing has left many fisheries unproductive, disturbing the marine food chain dynamics and costing jobs in the fishing industry. Herring, cod and plaice fisheries may soon face the same plight as mackerel fishing which ceased in the 1970s due to overfishing. Since the 1960s, various regulations have attempted to protect the stocks of fish such as limited fishing