“Vladimir Putin has launched a war in Ukraine, shattering peace on the European continent”, Nato Secretary General Jens Stoltenberg has said.
Prime Minister Boris Johnson said the Russian President had “chosen a path of bloodshed and destruction” and the UK and its allies would respond “decisively”.
But what exactly is Putin’s strategy and can he be stopped?
The Evening Standard’s Defence Editor, Robert Fox, explains the Russian strategy, their capabilities and whether Ukraine can fight back.