Early on, Munk was a strong opponent of the German Occupation of Denmark (1940–1945), although he continually opposed the idea of democracy as such, preferring the idea of a "Nordic dictator" who should unite the Nordic countries and keep them neutral during periods of international crisis. His plays "Han sidder ved Smeltediglen" ("He sits by the melting pot") and "Niels Ebbesen" were direct attacks on Nazism. The latter, centering on the figure of Niels Ebbesen, a medieval Danish squire considered a national hero for having assassinated an earlier German occupier of Denmark, Count Gerhard III, was a contemporary analogue to World War II-era Denmark. Despite friends who urged Munk to go underground, he continued to preach against Danes who collaborated with the Nazis.