Mmmm, I don't know.
I think like what JoJo wrote, it is saber rattling to a degree by China hoping that our MSM picks it up and starts to scare the US citizenry into pressuring Mr. Trump.
Like what Kbop wrote, I doubt it will be a shooting war it will be more economic. Now if they move to take over Taiwan, there will be a shooting war for sure.
The best way to win against China is not buy their goods - PERIOD. Of course then Wally-World will go bankrupt.