Key Facts
- Total convoys run
- 78
- Merchant ships delivered
- ~1,400
- Allied merchant vessels lost
- 85
- British warships lost
- 16
- German U-boats lost
- 30
- Duration
- August 1941 – May 1945
Strategic Narrative Overview
Convoys ran from August 1941 through May 1945, designated PQ/QP and later JW/RA series, with interruptions during parts of 1942 and the summers of 1943 and 1944. The most catastrophic episode was the scattering of convoy PQ 17 in July 1942, when 24 of 35 merchant ships were sunk after the convoy was ordered to disperse. Later convoys benefited from stronger escorts and improved tactics, including the sinking of the battleship Scharnhorst at the Battle of the North Cape in December 1943.
01 / The Origins
Following Germany's invasion of the Soviet Union in June 1941, Britain and the United States committed to supplying the USSR with war materiel under the Anglo-Soviet Agreement and the US Lend-Lease programme. With overland routes limited, the Arctic sea route through the Atlantic and Arctic oceans to the Soviet ports of Murmansk and Arkhangelsk became the primary logistical corridor, exposing convoys to attack by German surface vessels, U-boats, and Luftwaffe aircraft operating from occupied Norway.
03 / The Outcome
The final convoy arrived in May 1945, coinciding with Germany's surrender. Altogether approximately 1,400 merchant ships successfully delivered supplies. Losses included 85 Allied merchant vessels, 16 British warships, the German battleship Scharnhorst, three German destroyers, and 30 U-boats. The operation demonstrated sustained Western Allied commitment to the Soviet Union and absorbed considerable German naval and air resources that might otherwise have been deployed elsewhere.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
4 belligerents
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.