Assertion: worker's party | /r/HasProperty | north viet nam
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text: When the Nixon administration expanded the war of aggression into Laos and Cambodia, the Chinese Government, with the personal attention of Premier Chou En-lai, played a positive role in bringing together the four parties (North Viet Nam, South Viet Nam, Laos and Cambodia) in a summit conference which strengthened their unity and determination to fight on to victory.