President Joe Biden made a surprise 23-hour visit to Ukraine, the first time in modern history a U.S. leader has visited a warzone outside the aegis of the U.S. military. During the trip, Biden recommitted to backing Ukraine in its second year of conflict and directly blamed his counterpart in the Kremlin for the war. He met with Ukrainian President Volodymyr Zelensky, visited a military base, and held a press conference in Kyiv, demonstrating the U.S.'s commitment to Ukraine and Biden's view of America's role in the world.