Ukraine said its “Operation Spiderweb” attacked Russian warplanes worth hundreds of millions of dollars, utilizing drones that each cost under $1,000 and were launched from wooden containers carried on trucks.

A major operation has been launched by Ukraine using drones to destroy Russian strategic bomber planes, according to the Ukrainian security service.

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