US President Joe Biden made a surprise visit to Kyiv, Ukraine on Monday to mark the one-year anniversary of Russia's war against Ukraine. He held a meeting with Ukrainian President Volodymyr Zelenskyy and praised him, while also affirming the US' support for Ukraine in its fight against Russian aggression. Biden is scheduled to visit Warsaw on Tuesday to meet with Polish President Andrzej Duda and discuss the importance of the US-Poland alliance.