China does have a very large number of active duty servicemembers, though I don’t think that’s all that surprising when they’re one of the planet’s largest countries, and have been steadily modernizing over the last few decades. I also imagine their unusually high youth unemployment numbers contribute to the ease of recruitment. When you have over a billion population, keeping 1% of them active duty is probably not particularly difficult.
Russia has the advantage of global recruitment, and are offering frankly huge financial incentives to anyone willing to fight. It’s got to be rapidly draining their coffers. I suspect Xi is mainly just war profiteering off of them. In light of western sanctions, this has probably been the best period to be a Chinese exporter in many years. lol Russia is likely willing to pay top dollar for whatever they require to fuel their war machine. And there’s always their raw material exports as well.
It was just a matter of time, we’ve had automated vacuum cleaners for ages now.
Putting guns on them is a bit harder, you definitely want a well-tested system for that. But cameras is pretty easy.