Pyongyang is dependent on the world's second-largest economy, but the "blood-cemented alliance" doesn't extend to security issues.

South Korea’s military said Wednesday that South ... powered submarine under construction. Many civilian experts said at the time that North Korea may have received Russian technological ...

“There was no reason for Putin to be shooting missiles into civilian areas ... The Central Military Commission of North Korea’s ruling Workers' Party said leader Kim Jong Un made the decision ...