What does Russia's nuclear policy change mean for global security? | Russia-Ukraine war

President Vladimir Putin has revised Russia's nuclear doctrine.

Now, if a non-nuclear country – with the help of nuclear power – threatens the country's sovereignty, it will be considered a collective threat, and Russia can respond with atomic weapons.

So what is behind Putin's decision? How will fighting in Ukraine affect? And how will the West respond?

Presenter: Neave Barker

Guests:

Pavel Felgenhauer – Russian defense and military analyst

Colin Clarke – research director at The Soufan Group, a global intelligence and security consultancy

Marina Miron – postdoctoral researcher in the Department of Military Studies at King's College London