IIRC the DPRK was established with help of the USSR though in the Korea War I agree that China helped save DPRK but also with help of USSR. But that was a different China. Today to me it seems that DPRK / North Korea mostly has economic ties with China. North Korea is not ideologically and practically trustful of China because China just is a big single-party imitation of the Capitalist West.
Till when ?
If China has not helped Russia in Syria in eleven years I doubt it will help Russia now. I don't see a connection between the NATO war against Russia and the NATO war against China. China is number two on NATO's list. Number one has always been USSR and Russia. Ironicaly a Chinese member had posted a street interview here by Asian Boss channel. The interview was in the streets of Almaty, Kazakhstan. One girl said that if Russia has to fight the world then Kazakhstan will fight alongside Russia. I don't think she will have the same sentiment about China even though Kazakhstan shares a long border with China.
@Ich and the progressive Americans can migrate to Russia and I will say that Russia should push the buttons for whatever is left of the American cities, taking care that the American mountain lions and other cats and the deer are unharmed. I also hope that Elon and his likes take their talents to Russia.