Did the Germans invade Denmark in WWI?
However, it was invaded in WWII. In 1940, Denmark was invaded by the Nazis. King Christian X reluctantly cautioned his fellow Danes to accept the occupation, but there was widespread resistance against the Nazis. Denmark was the only occupied country in World War II to save all its Jews from extermination, by smuggling them out of the country. Sources: http://www.infoplease.com/ipa/A0107460.