Volodymyr Zelensky said Sunday -- the eve of the third anniversary of Russia's invasion -- that he was ready to quit as Ukraine's president if it meant Kyiv would be admitted to the NATO military alliance.
Zelensky has faced fierce criticism from the new US administration and said he wants to meet Donald Trump before the US president meets his Russian counterpart Vladimir Putin.
Zelensky has been calling for Ukraine to be given NATO membership as part of any deal to end the war, but the Washington-led alliance has been reluctant to make a pledge.