Neither China nor Russia will allow the other to be defeated by the U.S. & its allies.
— 倪明达 (Ni Mingda) (@NiMingda_GG) July 23, 2023
That's because if Russia falls, the U.S. will turn it into a dagger against China.
Same goes for Russia if China falls.
So if the U.S. wants a war, it will be fighting both China AND Russia.