The war between Russia and Ukraine has been going on for the past three years now.

"Russia is about to suffer 700,000 people killed or wounded – the enormous pain and suffering that the Russian nation is having to bear because of Putin’s ambition," Radakin told BBC.

"There is no doubt that Russia is making tactical, territorial gains and that is putting pressure on Ukraine," he said.

He said Russia is witnessing an 'enormous drain' since it is spending more than 40% of its public expenditure on defence and security.

Ukraine on Sunday launched its largest drone attack on Moscow since the war’s onset in 2022, deploying at least 34 drones, which resulted in flight diversions from Moscow’s three main airports and left one person injured, Reuters reported.

Russian air defences also intercepted an additional 36 drones over western Russia within a span of three hours, according to the Russian defense ministry.

The ministry stated, “An attempt by the Kyiv regime to carry out a terrorist attack using airplane-type drones on the territory of the Russian Federation was thwarted.”

Domodedovo, Sheremetyevo, and Zhukovsky airports diverted at least 36 flights but soon resumed normal operations.

Moscow, with its metro area home to over 21 million people, stands among Europe’s largest cities, comparable in size to Istanbul.

Meanwhile, Russia reportedly launched a record 145 drones overnight, as per Ukraine, which claimed to have downed 62 of these drones.

Ukraine also reported a successful strike on an arsenal in Russia’s Bryansk region, which itself reported intercepting 14 drones.

Footage on Russian Telegram channels, though unverified, appeared to show drones moving across Moscow’s skyline.