In the Second World War was the NS survival as an independent company. The price we paid was sure that all the wishes of the Germans met was come, as was the NS railway line to the Westerbork camp constructed. Nearly one hundred thousand Jews with the help of NS personnel to the camps discharged. In 1943, refused the railway staff, despite an urgent call from the strikers, to join in the April-May strike against the removal of former soldiers in captivity. Director William Hupkes argued later that the strike would have been unsuccessful and that no appeal was made by the Dutch government in London. When that call came one year later, in September 1944, were the railways in the last winter of the war still on strike. The NS negotiated this with the Dutch government in exile and was able to achieve during the strike all wages (including Christmas bonus) would be paid. Especially in the last winter of the war is the most damage to the railways. Material was taken to Germany, rails were broken because the German steel industry needed as raw materials. Finally crucial bridges were destroyed by all parties, it was not the advance of the Allies to stop or to prevent shipments to Germany. In the 60 coal disappeared rapidly as fuel to make way for gas. For NS meant the loss of large amounts of coal shipments from South Limburg, which had always made a profit. Moreover, the competition started the car more and more to be felt. The result was that railway from 1963 continues in the losses became, like other European railway companies.