 The British 1st Airborne Division was tasked with securing the most distant objectives ; bridges over the Lower Rhine at Arnhem . The division dropped onto the area on 17 September and a small force was able to secure the Arnhem road bridge . However the unexpected presence of SS Panzer troops of the II SS <unk> meant the Allies were never able to fully secure their objectives and so after nine days without sufficient reinforcement by the advancing ground forces , the division was withdrawn on 25 September . 
