US President Joe Biden made an unannounced visit Monday to Ukraine to meet  President Volodymyr Zelensky, a gesture of solidarity that comes days before the one-year anniversary of Russia’s invasion of the country.

Biden met Zelensky at Mariinsky Palace to announce an additional half-billion dollars in U.S. assistance and to reassure Ukraine of American and allied support as the conflict continues. “One year later, Kyiv stands. And Ukraine stands. Democracy stands,” Biden said.