There's less reluctance on the Russian side to build combat robots.[1] Policy from China is unclear, but swarms of 1000 drones have been demonstrated.

A reasonable near-term prospect is a package of maybe 1000 armed drones, programmed to kill anybody carrying a gun. Turn this loose on an occupied town, and in a few minutes, the occupiers have been thinned out enough that opposing troops can enter.

[1] https://www.researchgate.net/publication/309732151_Russia%27...