This page is about the effects on Sweden, during and following Operation Weserübung.For articles about the operation itself, see also Operation Weserübung and Norwegian Campaign. On 9 April 1940, Germany successfully launched Operation Weserübung, a daring operation with the objective of simultaneously occupying Denmark and Norway and staging a coup d'état in those nations. That had several far-reaching consequences for Sweden, which became effectively cut off from trade with the Western world and so was more dependent on German goodwill. That eventually led to commencing the permitenttrafik and the transition of the Engelbrecht Division but also lessened the immediate risk of Sweden being a theatre of war between the Axis and the Allies.