If China, Russia, and North Korea did try and launch simultaneous conflicts this is what would be called World War III:
Growing military cooperation among North Korea, Russia, China and Iran raises the possibility of “simultaneous conflicts with multiple nuclear-armed adversaries,” a top U.S. general warned Thursday.
Gen. Anthony Cotton, commander of U.S. Strategic Command, made the remarks during a session of the Senate Armed Services Committee, stressing that his command will “always” be “ready to fight tonight.”
“We are confronting not one, but two nuclear peers — the Russian Federation and the People’s Republic of China. This reality, combined by missile developments in North Korea, Iran’s nuclear ambitions and the growing relationships amongst those nations, adds new layers of complexity to our strategic calculus,” he said.
“It also raises the possibility of simultaneous conflicts with multiple nuclear-armed adversaries,” he added.
Yonhap
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