Poland is the largest European Union nation to border Ukraine and the government is making preparations to accept Ukrainian refugees if Russian attacks.
Volodymyr Zelenskyy is watching his once-enormous support dissolve after 2½ years in office as Ukraine stands on what many fear is the verge of a Russian invasion.
U.S. President Joe Biden and Russian President Vladimir Putin plan to hold a high-stakes telephone call on Saturday to discuss mounting tensions over Ukraine.
French President Emmanuel Macron, meeting with Ukrainian President Volodymyr Zelenskyy, says Russian President Vladimir Putin told him that Moscow would not further escalate the Ukraine crisis.
The U.S. has mounted a concerted campaign to counter disinformation, which has long been a tactic of Moscow to create confusion and sow discord in conflicts.