ICGV Þór (1951)
former ship of the Icelandic Coast Guard

ICGV Þór was an offshore patrol vessel of the Icelandic Coast Guard. The third coast guard ship to bear the name, she was the flagship of the fleet and served in all three Cod Wars conflicts between Iceland and the United Kingdom.
History
Þór was ordered on 8 November 1948. It was built in Ålborg, Denmark and arrived in Iceland on 20 October 1951. It was originally armed with two 47 mm and one 57 mm guns.
Cod Wars
In the First Cod War, which started on 1 September 1958, Icelandic fisheries protection vessels made numerous attempts to stop British trawlers from fishing in contested waters, attempting to arrest the trawlers or cut their nets.
On 29 September that year, Þór fired warning shots when trying to arrest trawlers, while on 30 April 1959, Þór fired on the trawler Arctic Viking, first firing warning shots and then at the trawler's masts to disable Arctic Viking's radio. The British destroyer Contest, which was on patrol in the area, fired three star shells, after which, Þór turned away and abandoned its attempts to arrest the trawler. On 29 February 1960, Þór fired warning shots at the trawler Camilla.
On 11 December 1975, Þór, under the command of Helgi Hallvarðsson, was leaving port at Seyðisfjörður, where it had been minesweeping, when orders were received to investigate the presence of unidentified foreign vessels at the mouth of the fjord.
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