During his visit to Washington on Feb. 28, President Volodymyr Zelensky had a heated exchange with U.S. President Donald Trump and Vice President JD Vance over ways to end Russia's war against Ukraine. Trump and Vance have repeatedly claimed that Zelensky has not been sufficiently grateful for U.S. support throughout the war. The Kyiv Independent has compiled instances where Zelensky has publicly expressed gratitude to the U.S., its people, and its leadership for being Ukraine’s largest supporter.