 "Siegfried" was deployed to intercept east-bound convoys in mid-Atlantic, planning to attack while travelling towards the re-fueling group and home bases in France.However the Allies became aware of "Siegfried"s position, and diverted their east-bound HX and SC convoys out of harm's way, leaving a massively re-inforced west-bound convoy, ON 207 to run into "Siegfried" as bait.Three "Siegfried" boats were destroyed in engagements with ON 207's escorts (, , and ), while the re-fueling group was attacked by USN hunter-killer groups centred on the escort carriers and .