More than 5m people have fled the Russian invasion, and many have carried with them trauma and loss. That has been compounded by the economic stress of living abroad, and by family separation Ukrainian men aged 18-60 must stay and help defend their country. The World Health Organisation estimated in March that at least half a million refugees were suffering from mental-health issues. That has overwhelmed the already inadequate mental-health infrastructure of their eastern European hosts. Can the world health organization really help the situation in Ukraine ?

