They already had a small drone war. Azerbaijan vs Armenia. Armenia had 1990s soviet stuff. Azerbaijan had recently purchased drone tech. Armenia got totally destroyed.

https://www.msn.com/en-us/news/world/attack-drones-dominatin...

These are previews of future wars, much like the wars in the decades before WW1 previewed the utter slaughter that was to come thanks to the new technological era of mechanized warfare.

Less collateral damage. L

Much more accessible to regular people.

Ability to be anonymous and hide in a crowd of drones.