From the foothills of the Ural Mountains to the arid coast of the Caspian Sea, Russian regions far from the front line are bearing the brunt of a widening Ukrainian deep-strike campaign using drones and missiles.

Once seen as almost impenetrable, Russian air defenses are now under growing strain from Ukrainian drones. A recent attack on Moscow has reignited debate over Russian…

From the foothills of the Ural Mountains to the arid coast of the Caspian Sea, Russian regions far from the front line are bearing the brunt of a widening Ukrainian deep-strike…