All the conflicting rumours over the past few months about Allied intentions, and his obsession with the final capture of Stalingrad, had meant that the OKW was completely unprepared for a new front. The big question was how the Vichy regime would react to an Allied invasion of its North African colonies. Ribbentrop joined the train at Bamberg, and urged Hitler to let him make overtures to Stalin through the Soviet ambassador in Stockholm. Hitler rejected the suggestion out of hand. The idea of negotiating at a moment of weakness was unthinkable.