The raid was conducted by appox. 1000 men of No.3 and No.4 Commandos, 52 Norwegian combat volunteers and demolition teams from the 55th Field Squadron Royal Engineers. The force made an unopposed landing and generally continued to meet no opposition. They achieved their objective of destroying fish oil factories and some 800,000 tons of oil and glycerine which some of the oil was processed into for use in munitions.
Through naval gunfire and demolition parities, 18,000 tons of shipping were sunk and boarding of the German armed trawler Krebs yielded a set of rotor wheels for an Enigma cypher machine and its code books.
The British experienced only one accidental injury and returned with some 228 German prisoners (various), 314 loyal Norwegian volunteers and a number of Quisling collaborators.
(A Claymore is a traditional Scottish broadsword.)