The multi-turreted heavy tank Neubaufahrzeuge prototypes were used mainly for propaganda before the war and their role was extended with the German invasion of Norway, when a special Panzerabteilung was formed which took the three armored prototypes with them to Oslo. They saw some combat there, with one being blown up by German engineers when it got stuck in swamps near Åndalsnes. The other prototypes were eventually scrapped.