It’s a plea that has been heard around the world: Ukraine wants its allies to set up a no-fly zone in its airspace. They believe it would give them the tactical advantage in the war that Russia started. But so NATO, U.S. President Joe Biden and other leaders have decisively said no to the idea.

But what would establishing a no-fly zone over the country actually look like? Who would be responsible? What’s exactly the case for – and against – it? Dr. Stacie Pettyjohn is a senior fellow and director of the defence program at the Center for a New American Security. She talks us through the complexities of the no-fly zone concept.

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