Biden visits Ukraine for show of support amid concern China could give Putin lethal aid a year into Russia's invasion

President Biden paid an unannounced visit Monday to Ukraine's capital, offering a huge show of support for the country the U.S. and its allies have helped to hold out during Russia's nearly-year-long, unprovoked invasion. Mr. Biden spent about six hours in Kyiv, much of it with Ukrainian President Volodymyr Zelenskyy, whom he promised unwavering backing and another tranche of American weapons.  

"I am in Kyiv today to meet with President Zelenskyy and reaffirm our unwavering and unflagging commitment to Ukraine's democracy, sovereignty, and territorial integrity," Mr. Biden said in a statement released by the White House, confirming his first visit to Ukraine since the war began. 

Mr. Biden's visit to the region, which was to see him meet later in the day with other European leaders in Poland, comes as the world prepares to mark a full year since Russian President Vladimir Putin launched his full-scale invasion of Ukraine — and amid concerns first publicized over the weekend by America's top diplomat that China may be on the brink of providing Russia with weapons to bolster its assault.