It is a dreaded scenario, one likely to keep generals awake at night. Swarms of low-cost UAVs capable of wreaking havoc along the battlefield are envisioned as a game-changing weapon for future conflict—but the technology and vision needed for such an attack are no longer just the purview of nation-states and have now fallen into the hands of insurgents and terrorists. In what appears to be the first attack of its kind, insurgents in Syria attempted a mass attack of explosive-laden ...
