The US has absolutely no chance against the combined might of Russia and China.
True that Over a decade ago, Russia had cheap systems, that render the US carrier fleets totally obsolete.
And Russia is closer to China, and much stronger now, than they were 10 years ago.
Russia stated over 10 years ago, that their response to a US carrier group
Literally groups of these armed with nukes, to be detonated deep under a carrier, will create a hole in the water, under the carrier, which will quickly be filled back in, dragging an entire US carrier group with it.
The US is fucked if they try shit with people this crazy.