+A **quisling** is a derogatory term for a national who collaborates with an enemy occupying their country. This act of [Treason](/wiki/treason) often involves serving as a puppet ruler or administrator. The word derives from Vidkun Quisling, a Norwegian who aided Nazi Germany during [World War II](/wiki/world-war-ii).
+## See also
+- [Collaboration](/wiki/collaboration)
+- [Puppet State](/wiki/puppet-state)
+- [Fifth Column](/wiki/fifth-column)
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