NATO leaders are gathering in the Netherlands for their annual summit at the same time a fragile ceasefire in the Israel-Iran war appears to be holding. Can diplomacy succeed if the ceasefire survives? Among the leaders urging that path is Canada's Prime Minister Mark Carney. Christiane sat down with the Prime Minister in the Netherlands today. 

Also on today's show: EU Foreign Policy Chief Kaja Kallas; Barry Eichengreen, Professor of Economics and Politics, U.C. Berkeley