Convoy PQ-4 was the fifth of the Arctic Convoys

Arctic convoys of World War II

The Arctic convoys of World War II travelled from the United Kingdom and North America to the northern ports of the Soviet Union—Arkhangelsk and Murmansk. There were 78 convoys between August 1941 and May 1945...

 of World War II by which the Western Allies supplied material material aid to the Soviet Union

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 in its fight with Nazi Germany

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

. The Convoy sailed from Hvalfjord, Iceland on 17 November 1941 and arrived at Archangelsk on 28 November 1941.

Ships

The convoy consisted of eight merchant ships (four British and four Soviet) all of which arrived safely. The escort consisted of the cruiser HMS Berwick

HMS Berwick (65)

HMS Berwick was a Royal Navy County class heavy cruiser, of the Kent subclass. She was built by Fairfield Shipbuilding and Engineering Company , with the keel being laid down on 15 September 1924...

, the destroyers HMS Offa

HMS Offa (G29)

HMS Offa was an O-class destroyer of the Royal Navy which entered service in 1941.During November 1941 HMS Offa was part of Convoy PQ-4, the fifth of the Arctic Convoys of World War II. The convoy sailed from Hvalfjord, Iceland on 17 November 1941 and arrived at Arkhangelsk on 28 November 1941.On...

 and HMS Onslow

HMS Onslow (G17)

HMS Onslow was an O-class destroyer flotilla leader of the Royal Navy She was ordered from John Brown & Company at Clydebank, Glasgow on 3 September 1939. The ship was laid down on 1 July 1940 and launched on 31 March 1941. She was completed on 8 October 1941 at a cost of £416,942.Attached to the...

, two minesweeper

Minesweeper (ship)

A minesweeper is a small naval warship designed to counter the threat posed by naval mines. Minesweepers generally detect then neutralize mines in advance of other naval operations.-History:...

s and two armed trawlers

Naval trawler

A naval trawler is a vessel built along the lines of a fishing trawler but fitted out for naval purposes. Naval trawlers were widely used during the First and Second world wars. Fishing trawlers were particularly suited for many naval requirements because they were robust boats designed to work...

.