I see drones as more of a side-affect to the new era of warfare we are in. The more powerful your economy, the more autonomous weapons you can create and eventually deploy. Manufacturing capacity and economic resiliancy are becoming far more important than a nation's ability to equip and train its military.

The alarming part of this to me is that this heavily implies that wars will be decided more by who can successfully destroy their adversary's economy, than who can take and hold points of strength. Holding a city with an entrenched military doesnt matter much when there is still a factory deep in enemy territory producing the next wave of attacks. The incentives for targeting non-combatant civilians is rising at an alarming rate.