Russia's wartime economy is reportedly on the verge of collapse, Putin has been warned, after the despot blew over £400m in a single night on a massive drone attack on Ukraine . Last night saw the Kremlin stage one of its largest missile and drone strikes on Ukraine this year, killing at least 15 and leaving more than 100 wounded. Putin expended 73 missiles and 656 drones in an attack that cost an estimated £400 million on Manday night, killing at least 11 people in Dnipro and four in Kyiv.