The Doorbraak (literally: Breakthrough) was an attempt to renew the politics of the Netherlands after the Second World War. After the Second World War, there was widespread feeling amongst progressives that the pillarized political system should be broken open. No longer should Roman Catholic people vote for the Catholic RKSP simply because they were Catholic or Reformed people for the Anti Revolutionary Party simply because they were Reformed. Instead, political issues should structure the political system. The progressives were united in their vision of a democratic socialist Netherlands.