Agreed China does not want war but it will try it's best to prevent the North collapsing into one due to stupidity on the North's part it would not like to have a border with South that ended up getting the Norths nukes.
It has been speculated recently that cliques are positioning themselves in the party for the day Kim pushes off this mortal coil it could have been an act of aggression done out of a need to project strength to the Party.
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