There must be two parties comprise the doubles clash. The one whose status as a nation-State On the other hand, parties are not required to have a status as a nation-State. As an example of terrorism.
There must be two parties constitute a contender. The one with the status of a state. The other parties may not have the status of a national state. Examples of terrorism
There will be two constitute the opponent. The one with the status of the nation-state. The other could no status as a nation-state. Famous examples of terrorism .