have to be able to fight and holding is not clear that the russian economy is the kind of strength to withstand the sanctions for years and years and so, let's get over the notion that putin decides, when he invaded ukraine on february 2a, he lost control. now the controls contested in ukraine and showed it's more effective than putin in determining its own fate. nearly 2 million ukrainian children have now fled russian bombardment to neighbouring countries, according to the united nations. unicef and other humanitarian organizations have warned these children along with their mothers and otherfemale ukrainian refugees are at a heightened risk of trafficking and exploitation. our europe editor katya adler sent this report from the polish ukrainian border. they grabbed what mattered most