A Polish official said the US told Russia it would strike Russian targets in Ukraine if Putin used a nuke.
Former Russian President Dmitry Medvedev said such US strikes would result in a "world war."
Putin has regularly issued nuclear threats since Russia launched its full-scale invasion of Ukraine.
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AdvertisementPoland's foreign minister said the US had told Russia that it would strike Russian targets in Ukraine if Putin were to use nuclear weapons.
Persons:
Putin, Dmitry Medvedev, —, Radosław Sikorski
Organizations:
Service, Guardian, Business
Locations:
Russia, Ukraine