Initially, the invasion plan was to push Denmark to accept that German land, naval and air forces could use Danish bases, but after a change of plans, Adolf Hitler demanded that both Norway and Denmark be invaded.
Oprindelig gik planen ud på at presse Danmark til at godtage, at tyske land-, flåde- og flystyrker kunne benytte dansk territorium, men efter en ændring af planerne krævede Adolf Hitler, at både Norge og Danmark skulle invaderes.