If America goes to war with North Korea, its pretty much fucked cause China gets on the way. It will be a really bad scenario If this childish behaviour and braincell genocide continues.
Needs to be seen how much China will get itself involved, if a physical confrontation develops between North Korea and the United States. I have no doubt that China will support the DPRK. But it needs to be seen whether this support is going to be direct, or indirect.