Ukraine has stepped up its campaign of drone attacks on targets inside Russia, including in Moscow. In response, Russia appears to be copying WWII-style "flak towers" to augment its air defenses. Both ...

The blockhouse towers – enormous concrete and steel leviathans that dominated the skyline – were constructed in Berlin, Hamburg, and Vienna and used in defense against Allied air raids. Each one was ...

Crossing the Dutch coast was the start of every bomber crew’s nightmare—the murderous gauntlet of German flak. From radar-guided salvos and blinding searchlights to steel-cabled barrage balloons, the ...

It began as a secret anti-aircraft weapon—but soon became the most feared gun on the battlefield. Long before the Tiger tank ...

VIENNA, Austria -- The six concrete flak towers loom up from parks, standing guard like brooding castles. But the Nazi fortifications failed to fulfill their purpose -- defending Austria's capital ...