“China is assisting them.”
Link please.
This article is likely mostly bogus.
GPS is a spread spectrum signal and it has an encrypted mode. It is nearly impossible to jam because the antennae are hemispheric (they point up, not down, and they cycle among multiple when they are on rotating shells) which means raw, brute strength jamming at the very wide bandwidth GPS downlink is hugely difficult. Trying to penetrate the encryption to lessen the amount of jamming power required is similarly unlikely, since the sequence cycles frequently.
Beyond that, GPS is merely one part of the navigation solution of ordinance. Inertial guidance (3 axis accelerometers and 3 axis ring laser gyro) blended into a computer with GPS will take over the guidance when GPS results are declared by the software to be invalid. Invalid is defined as differing from inertial by some magnitude. When it happens, inertial is the default and it’s pretty accurate.
So this is all bogus. You can’t jam inertial.
You could EMP it, which in traditional thought requires a nuclear explosion’s level of power. If the Russians have a localized, pointable, somehow portable power level sufficient EMP capability . . . we might as well surrender rather than lose our cities, because none of our weapons will reach the target and we have no deterrent.