Moving forward, Ukraine’s state security agency, or SBU, used drones Friday to destroy or damage four Sukhoi Su-34 fighter-bombers at Marinovka air base, 180 miles east of Ukraine. Since the war started in 2022, Russia has lost about 40 Su-34s, or a third of its original fleet.

Ukrainian drone hunters picking up the debris from Russia’s nightly assault on their cities found a weapon that stood out from the rest. It had