2.7 million people have so far fled the war in ukraine, according to the most recent un figure. most are going into neighbouring countries to the west, with more than a million crossing into poland. our correspondent, mark lowen, sent this report from zamosc, where people in the town are working hard to provide refugees with accommodation, food — and some sense of a normal life. for the children of war, open arms are mightier than the fist. young ukrainians, eased into life in poland with a karate class — joy to distract from trauma — and a lesson that the greatest strength comes from peace. my father might be fighting. i don't know. i don't have massage from him. dari hasn't heard from his dad for three days. the emotions make it hard to feel settled here. in poland, it's very cold here, but we want them back home because home is home.