For a fleeting moment ahead of the first meeting in mid-May, there existed the faintest prospect that Vladimir Putin and Ukrainian President Volodymyr Zelensky would join, sitting down in the same room for face-to-face talks.
But it didn’t happen; few expected it would. On that occasion, it was Putin who refused Zelensky’s offer of face-to-face talks in Istanbul. Even though neither leader attended the recentsummits, they have met before.
In Paris in 2019, the two men sat down together as part of what was known as the Normandy Format talks. As a scholar of international relations, I have interviewed people involved in the talks, andsome five years on, the way the talks floundered and then failed can offer lessons about the challenges today’s would-be mediators now face.