1. 
   collaborationist
   quisling noun someone who collaborates with an enemy occupying force
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=collaborationist
   
   
2. 
   collaborationist
   collaborationist A description of someone who commits treason by cooperating with enemy forces occupying one's country. As such it implies criminal deeds in the service of the occupying power, including complicity with the occupying power in murder, persecutions, pillage, and economic exploitation; ...
   Found op http://www.wordinfo.info/words/index/info/view_unit/1130/
   
   
3. 
   collaborationist
   1) Collaborator 2) Quisling 3) Traitor 4) Treasonist
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/collaborationist/1
   
   

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