Keith Kellogg, the U.S. special envoy for Ukraine and Russia, met with Ukrainian President Volodymyr Zelenskyy this week, and Kellogg took to social media on Friday to describe Zelenskyy as a 'courageous leader'.

Keith Kellogg, U.S. President Donald Trump's Ukraine envoy, said on Monday that no one would impose a peace deal on Kyiv and that questions about whether Washington would provide guarantees for any future European peacekeepers would be addressed later.