of one orphanage in lviv. tom? >> reporter: this morning, the mass exodus in ukraine reaching historic levels. now the fastest-growing refugee crisis since world war ii. >> i just left my home to nowhere. i have no plan. i just wanted to save my child. >> protecting children is fueling the migration, from the fighting in the east to safe havens in the west. >> these children you see here may be in the worst possible position, because they're orphans. they do not have family. they are in limbo right now. they are being taken care of. they're being fed. but like everyone else in ukraine at this moment, no one knows what's going to happen tomorrow. >> reporter: last friday, we introduced you to a group of ukrainian orphans, evacuated from the war zone. 8-year-old demetrius told us how he hopes to still be adopted. what do you want the world to know about ukraine? he told me, he wants the war to stop. anything you want to say to