Ukraine likely destroyed 3 of Russia's prized S-400 missile systems worth $1.5 billion, weakening its air defenses, says UK intel

• Ukraine has destroyed several Russian long-range air defense systems in the last week, the UK MoD said.
• It suggests Russia's Integrated Air Defence System can't cope with hi-tech precision strike weapons.
• Unconfirmed reports said that Ukraine used US-provided ATACMS to strike at the Russian systems.

Ukraine has likely destroyed at least four Russian long-range air defense systems in the last week, weakening Russia's air defenses, the UK Department of Defense said in an intelligence update on Thursday.

These include three prized S-400 Triumf missile systems, which were destroyed in the Luhansk region on October 26, according to Russian media reports.