The covert operation was described as one for the “history books” by Ukraine’s president. According to Ukrainian officials, nearly a third of Moscow’s strategic bomber fleet was destroyed or damaged with cheaply made drones sneaked into Russian territory in the span of a few hours on Sunday.

A day after Ukraine launched an unprecedented drone attack on airbases inside Russia, the warring sides sat down for a second round of direct talks in Turkey.

It could also make Moscow behave even more aggressively toward Ukraine as the two countries struggle to find common ground in peace talks.

Though the knock-on effects are unclear, some military commentators have called the strike Russia's "Pearl Harbor." Hopes for direct peace talks, which resume Monday, remain low.

The strikes help Kyiv "negotiate from a position of strength," Oleksandr Merezhko, the head of Ukraine's parliamentary foreign affairs committee, told Newsweek.

Ukraine unleashed more than a hundred drones smuggled deep into Russia in what it called its most damaging attack yet.

A surprise Ukrainian drone attack that targeted Russian air bases hosting nuclear-capable strategic bombers was unprecedented in its scope and sophistication, and dealt a heavy blow to the Russian mil

Drones are all over the battlefield in Ukraine, prompting NATO militaries to reexamine how they train for future wars.