(FILES) Ukrainian Ambassador to the United States Olha Stefanishyna testifies during a Senate Appropriations Subcommittee on State, Foreign Operations and Related Programs hearing titled "The Abduction of Ukrainian Children by the Russian Federation" on Capitol Hill, in Washington, DC on December 3, 2025. Ukrainian President Volodymyr Zelensky has on August 3, 2026, dismissed his ambassador to the United States, Olga Stefanishyna, in a move that had been expected following a government reshuffle last month. (Photo by Jim WATSON / AFP via Getty Images)