—”I wouldn’t be surprised if the Chinese are waiting for the right pretext and opportunity.”
They are waiting and probably not going kinetic.
A recent article on the Chinese–Russian border called it a suitcase invasion.
As the Chinese businessmen set up shop.
As the Russian economy sinks they will come to terms with an adjustment in the border.
Cheaper to purchase their land than pay for the ammunition... An offer the Russians cannot refuse.
Perhaps a suitcase invasion along with mass migration.