transporting the landing force to arendal, and providing support in case of norwegian resistance, was the raubvogel class torpedo boat "greif", commanded by "kapitänleutnant" wilhelm-nikolaus freiherr von lyncker and carrying torpedo boat flotilla commander "korvettenkapitän" wolf henne. once the army troops were on shore and in control of the town, "greif" was to sail off and rejoin the rest of "gruppe 4" at kristiansand. the germans did not expect resistance at arendal, the town being unfortified and without a garrison.