[zyx321]

Well, you're not gonna target the drones. You'll want to destroy the enemy's ability to control those drones, or their ability to build and maintain them.

Or, more realistically/cynically, you want to PRETEND that's what you're doing, when you're actually targeting major population centers in order to terrorize the enemy into surrendering (as used in WW2 by the USA against Japan, Japan against China, Germany and Britain against each other, etc...)

And simply disengaging when you decide you've had enough is a luxury that the USA and USSR have enjoyed in their proxy wars. Americans haven't had to defend their homeland in over 200 years now, and it seems a very skewed view of the horrors of war resulted from that. If war is nothing but a drain on resources to you, you're not so much fighting as you are trying to mug someone who can't really fight back.