When the sun rose on Lake Geneva this morning, major obstacles remained, such as disagreements over the monitoring of enrichment research and the pace of lifting sanctions. But the return of the Russian foreign minister to the talks raised hopes of what would not yet be a final deal but nonetheless an historic breakthrough. At the end of the day, can a deal stop Iran from getting the bomb? What knock-on effect can we expect?
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A weapon is mounted on the Lehit ground robotic system, developed by specialists of the International Legion under the Defence Intelligence of Ukraine, during a demonstration in Ukraine on December 9, 2025. (Getty Images)