Operation Checkmate was the codename for a raid on shipping at Haugesund, Norway in April 1943 during the Second World War by British Commandos. The raiding party consisted of seven men of No. 14 (Arctic) Commando who managed to sink one ship using limpet mines. While waiting in hiding for the transport back to the United Kingdom they were captured on 14 and 15 May 1943 and eventually taken to Sachsenhausen and Belsen concentration camps where six of them were executed, victims of the Commando Order. The seventh man died of typhus.