Russia is shifting tactics again, assaulting Ukrainian cities with swarms of killer drones

Families in Ukrainian cities are taking refuge from massive swarms of Russian drones, as Moscow steps up its airborne assault with attacks designed to undermine Ukrainian morale.

​ Families in Ukrainian cities are taking refuge from massive swarms of Russian drones, as Moscow steps up its airborne assault with attacks designed to undermine Ukrainian morale. Read More Breaking News, Latest News and Videos | CNN