Russia has attacked Ukraine with a new hypersonic missile.

Western leaders say it marks a dangerous new phase in the war.

The Kremlin says it follows a decision by the White House to let Ukraine fire US missiles into Russian territory.

So, what could happen next?

Presenter: Bernard Smith

Guests:

Michael Bociurkiw – Global affairs analyst

Pavel Felgenhauer – Russian defence and military analyst

Steven Erlanger – Chief diplomatic correspondent (Europe), The New York Times