On 29 June 1941, days after the invasion of the USSR, "Free Corps Denmark" () was founded as a corps of Danish volunteers to fight against the Soviet Union. "Free Corps Denmark" was set up at the initiative of the SS and DNSAP who approached Lieutenant-Colonel C.P. Kryssing of the Danish army shortly after the invasion of the USSR had begun. The Nazi paper "" proclaimed the creation of the corps on 29 June 1941.