The past week has seen international diplomacy turned upside down as the US began talks with Russia to end the war in Ukraine. The decision to exclude Ukraine - and Europe - from these talks led to an emergency summit in which European countries sought to establish some influence over the process.

But with the US and Ukrainian presidents embroiled in a dispute that led to President Trump calling President a “dictator”, is their relationship beyond repair? And will Ukraine have any say over the terms of a peace deal?

Newscast, Americast and Ukrainecast gathered in the studio for a special collaboration to unpack the enormous shift in international politics that’s unfolding.