Russia-Ukraine War Latest News: Tens of thousands of residents are leaving Ukraine amid Russia’s attack on the country. The UN refugee agency, the United Nations High Commissioner for Refugees (UNHCR) has estimated that about 368,000 Ukrainians have arrived in neighboring countries since the invasion started on February 24.  Russia-Ukraine War Latest News: Tens of thousands of residents are leaving Ukraine amid Russia’s attack on the country. The UN refugee agency, the United Nations High Commissioner for Refugees (UNHCR) has estimated that about 368,000 Ukrainians have arrived in neighboring countries since the invasion started on February 24.