For a few days, with Anglo-French forces withdrawn from central Norway, the only remaining war zone in Europe was the town of Narvik in the far north of Norway. The Germans continued to occupy the town while the Allies dominated the sea, albeit under constant threat from German planes. The British had been divided over strategy, the naval commander wanting a swift amphibious assault on the town (following the successful naval battles off Narvik), the army commander opting for a build up of troops before making a landward attack, preferably after the snow had melted. At the end of April French re-inforcements arrived and four Polish battalions would soon arrive. Norwegian forces were also active but operated independently of the Allied command.