dismantlement
noun /dɪsˈmæntlmənt/
  /dɪsˈmæntlmənt/
[uncountable]- the process of ending something or taking it apart in an organized way拆解:以某种方式结束某件事或将其拆散的过程 - the dismantlement of the country's nuclear weapons programme该国核武器计划的取消 
 
- the dismantlement of the country's nuclear weapons programme