China did the right thing
When faced with American provocation and drum beating to raise tension in the Korean Peninsula, China did the right thing by telling the provocateurs to get lost. What China did was to conduct its own war exercises in its coastal waters. And by so doing, it activated the live firing zones in the Yellow Sea. So live rounds would be fired and if American and South Korean ships strayed into the area, it would be at their own risk. And the risk would include the surrounding area as the soldiers could misfire or fire at the wrong place or wrong target. The Americans knew that China meant business when protecting its own territorial waters is concerned and quietly move their war mongering to the sea between Japan and North Korea. North Korea should do the same, start its own wargames and activate the sea as a live firing zone. Then stray bullets and missiles can hit wrong target accidentally. That should keep the warmongering nations at bay and to think twice. North Korea is not Iraq and the Americans could only second guess how far their missiles can go. The west coast states of America should not be a problem.