A number of internment camps were operated by Sweden during World War II. These camps were used for interment of, among others, suspected criminals, German refugees and Swedish communists. The camps were claimed to have been a decision necessary in the ambition to keep Sweden out of the war. It was made by the then-ruling grand coalition government under social democrat prime minister Per Albin Hansson, which all included all parties in the Parliament of Sweden, with the exception of the Communists.