The U.S. has not tied security guarantees for Ukraine post-war on Kyiv giving up all of its eastern Donbas region, a U.S. official told Newsweek , contradicting recent comments made by Ukrainian President Volodymyr Zelensky. Zelensky told media on Wednesday the U.S. had said it would only finalize committments to protect Ukraine post-war "once Ukraine is ready to withdraw from Donbas". Russia controls most of the bitterly-contested Donetsk and Luhanks regions in Ukraine's east, known as the