The world got a sneak peek at the future of war last fall when two former Soviet republics in the Caucasus Mountains launched a high-tech barrage of loitering munitions as well as Turkish-, Israeli-, and locally-made drones at each other during a six-week fight over a region disputed by Azerbaijan and Armenia. Media and think-tank writers covering the battle frequently conveyed an eye-popping assessment: Warring factions had used futuristic swarms of drones in the skies over Nagorno-Karabakh. But does this apparent technological leap in warfare mean that such swarms will be a mainstay in conflict?