Ukraine's recent attack on Russian warplanes was audacious, innovative and unprecedented. Ukraine's stealthy strike was carried out with small drones, hidden in trucks parked near several Russian air bases.

Yet Operation Spider's Web, orchestrated by the SBU intelligence service, was also part of a recurring theme: Ukraine keeps inventing new ways to wage war with drones, and regularly catches Russia by surprise.

"The Ukrainians are the ones innovating and trying these daring and creative attacks. And then the Russians are left scrambling to figure out how to defend against it, and prevent another one," said Kelly Grieco , who studies the air war at the Stimson Center think tank in Washington.

Ukraine has also pioneered the use of drones in the waters of the Black Sea. Last month, a U

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