According to National Security Adviser Jake Sullivan Russian authorities against Ukraine may take various forms, including the annexation of Donbas territory, which are now not under Kiev's control.
The NBC US diplomat reiterated that Washington believes that “We continue to believe that Moscow has created an opportunity for a large-scale military operation in Ukraine. The White House has worked hard to prepare a response. US President Biden has been able to gather Western allies, strengthen NATO's eastern wing, “We reassure US partners. We provide assistance to Kiev, we have also offered Russia a diplomatic trip. But in any case, we are ready for any developments,” said Biden's adviser.