There was a good one I remember, - They COD WAR

From the BBC:
"Cod Wars
The first 'Cod war' took place in 1958, when Iceland, extended its coastal fishing limit, from 4 miles, to 12 miles.
The Second Cod War started in 1972 when Iceland extended its coastal non-fishing limit to 50 miles.
It ended with an agreement between the two countries that limited British fishing to restricted areas, within the 50-mile limit.
This agreement was valid for two years and expired on November 13 1975, when the third "Cod War" started.
Between November 1975, and June 1976, the cod brought two NATO allies to the brink of war.
Great Britain and Iceland confronted each other as Iceland proclaimed its authority to 200 miles from its coastline.
British trawlers had their nets cut by Icelandic Coast Guard vessels and there were numerous rammings between Icelandic ships and British trawlers and frigates.
Iceland claimed that it was merely enforcing what would soon be international law.
Disastrous agreement
The USA offered to mediate, but it was NATO intercession that helped to end the conflict.
Iceland and Great Britain came to agreement on June 2 1976. A maximum of 24 British trawlers were allowed inside the 200-mile limit.
The annual cod catch was limited to 50,000 tons.
The agreement led to unemployment for 1,500 fishermen together with 7,500 onshore workers.
Common Fisheries Policy marks the End
By the 1930s, British fishermen bought home 300,000 tonnes of cod annually. EU officials say today there are only 70,000 tonnes of adult cod left in the North Sea."
look here:
http://www.britains-smallwars.com/RRGP/CodWar.htm