Joe Biden warns Vladimir Putin of ‘serious costs’ of continued military build-up on Ukraine border
- In phone call, the US leader ‘made clear that the United States and its allies and partners will respond decisively if Russia further invades Ukraine’
- Putin gives ‘no declarations’ as to his intentions, says a Biden administration official

Biden “made clear that the United States and its allies and partners will respond decisively if Russia further invades Ukraine”, White House press secretary Jen Psaki said of the call, which lasted around an hour.
Such a response from the US would include economic sanctions, an increase of Nato forces in allied countries in the region and an augmentation of US assistance to Ukraine “to enable it to further defend itself and its territory”, a senior administration official said, reiterating Washington’s previous warnings.
That sentiment echoed a New Year’s greeting Putin sent to Biden before the call, in which the Russian said he was confident that the two countries could establish an effective dialogue “based on mutual respect and consideration for each other’s national interests”.
