Refugees try to stay warm after fleeing the Russian invasion of Ukraine, at the Medyka border crossing in Poland, Tuesday, March 1, 2022. All day long, as trains and buses bring people fleeing Ukraine to the safety of Polish border towns, they carry not just Ukrainian fleeing a homeland under attack but large numbers of other citizens who had made Ukraine their home and whose fates too are now uncertain. (AP Photo/Visar Kryeziu), APTOPIX