Check out this article from @nytimes. Because I'm a subscriber, you can read it through this gift link without a subscription.
President Biden made a surprise trip to the embattled capital of Ukraine on Monday, traveling under a cloak of secrecy into a war zone to demonstrate what he called America’s “unwavering support” of the effort to beat back Russian forces nearly a year after they invaded the country.
https://www.nytimes.com/2023/02/20/us/politics/biden-ukraine-visit.html