UKRAINE-RUSSIA-US-WAR-CONFLICT-DIPLOMACY
President Joe Biden (L) is led up the stairs by Ukrainian President Volodymyr Zelensky upon his arrival at the Mariinsky Palace in Kyiv on February 20, 2023. - US President Joe Biden promised increased arms deliveries for Ukraine during a surprise visit to Kyiv on February 20, 2023, in which he also vowed Washington's "unflagging commitment" in defending Ukraine's territorial integrity. (Photo by Evan Vucci / POOL / AFP) (Photo by EVAN VUCCI/POOL/AFP via Getty Images)