On a special edition of Washington Week With The Atlantic, David Ignatius, a foreign-affairs columnist at The Washington Post, joined the editor in chief of The Atlantic, Jeffrey Goldberg, to discuss the state of negotiations with Iran, what the future could hold for the war between Russia and Ukraine, and how Trump may view the U.S.’s relationship with Cuba.

A fear is spreading that America’s commitment to upholding the promises that underlie NATO and other global alliances is faltering, Ignatius argued last night. “The NATO umbrella is getting pretty tattered, and I don’t think Americans appreciate just how dangerous that is,” he said. “Other countries will go their own way.”

Watch the full episode here.