Biden's U.S. National Security Adviser: "We encourage all American citizens who remain in Ukraine to depart immediatel
Biden's U.S. National Security Adviser: "We encourage all American citizens who remain in Ukraine to depart immediatel
Biden's U.S. National Security Adviser: "We encourage all American citizens who remain in Ukraine to depart immediately ... If you stay, you are assuming risk with no guarantee that there will be any other opportunity to leave"