On 9 April 1940 Denmark was invaded by Nazi Germany and quickly surrendered. Most of the Danish Army followed the order to capitulate. Colonel Helge Bennike, the commander of the 4th Regiment based at Roskilde, believed that the order to surrender had been forced on the government by the Germans and that Sweden had also been attacked. Instead of surrendering, Bennike and his unit boarded the ferry in Elsinore to Sweden and went into exile. After the misunderstanding was later cleared up, most Danish soldiers stayed in Sweden while others returned to Denmark.