It was the subject of a major U-boat attack in October 1943, the fourth battle in the German autumn offensive.

It consisted of 7 boats from the disbanded group Schlieffen, plus 11 others from bases in France and Germany.

When Allied intelligence learned of the position of Seigfried, it was decided to force an engagement with the wolfpack; several HX and SC convoys in the area were diverted away, whilst ON 207 was left to continue on course, as a bait convoy for the U-boats.

Duncan, Vidette and Sunflower attacked with depth charges and Hedgehog, and U-282 was destroyed with all hands.

With 3 U-boats destroyed for no ships lost ON 207 was undoubtedly an Allied victory; but if Admiralty was hoping to inflict a crushing blow to UbW by wiping out an entire wolf pack, this success eluded them.

Possibly the escorts were unfamiliar with their role as bait, and were too efficient at keeping the pack away from the convoy.

Following ON 207 BdU re-configured Siegfried to form 3 sub-groups to cover a wider area, but this failed to produce results.