Moscow Russia skyscraper drone attack
Investigators examine a damaged skyscraper in Moscow's business district after a reported drone attack on July 30.
  • 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 sides have embraced many decades-old weapons and tactics during the war in Ukraine.

Desperate to stop Ukrainian drone strikes on Moscow and other targets inside Russia, Russian air-defense forces are resurrecting a World War II-era system: towers with guns.