Putin faces 'existential' crisis after failing to take Donbas for 12 years | Cormac Smith
Putin’s Donbas failures have plunged him into a desperate dilemma | William B Taylor
Putin doesn't trust his generals as Trump's 'imperialism' puts Kremlin regime at risk
Putin’s Russian-flagged oil tanker was seized in ‘simple takeover’ | Former Royal Marine

Frontline: The War in Ukraine and Global Security