)[1] The Germans had been forced into minesweeping up to 150 nmi (170 mi; 280 km) into the Heligoland Bight and in the southern Baltic Sea, covered by light cruisers and destroyers, with occasional distant support by battleships.
Test trips were carried out, being substantial operations with ships to find the mines, minesweepers, torpedo boats (usually a continental term for destroyers), U-boats, barrier breakers and light cruisers, with air reconnaissance by Zeppelins and seaplanes.
[3] On 20 October, the British code breakers of Room 40, part of the Naval Intelligence Division of the Admiralty, decrypted orders to the submarine UB-61 to scout to the north of Bergen to find the new route of the Scandinavian Convoy.
[5] During the week ending 11 November, British light cruisers, destroyers and a battlecruiser escort, conducted an abortive sweep along the fringe of the Heligoland Bight minefields.
[3] By mid-November the Admiralty had obtained enough intelligence to intercept one of the big German minesweeping operations, provided that the ships based at Rosyth, in Scotland, could sail in time.
All personnel on the lower bridge were killed and the gunner officer, Lieutenant H. C. C. Clarke took command, which was made more difficult because the shell also cut all electrical communications and reduced the rate of fire.
[12] Able Seaman John Carless of Walsall, aboard Commodore Cowan's flagship Caledon, was awarded a posthumous Victoria Cross for his bravery in continuing to load and fire his gun despite receiving mortal shrapnel wounds that opened his abdomen.
2nd Scouting Group Konteradmiral Ludwig von Reuter 7th Torpedo-Boat Flotilla KKpt Hermann Cordes[e][f] Minesweepers 4th Battle Squadron (detachment) KptzS Kurt Graßhoff Other forces at sea in support (none of which were engaged)