internally displaced persons
внутренне перемещенные лица
https://ru.m.wikipedia.org/wiki/%D0%92%D0%BD%D1%83%D1%82%D1%80%D0%B5%D0%BD%D0%BD%D0%B5_%D0%BF%D0%B5%D1%80%D0%B5%D0%BC%D0%B5%D1%89%D1%91%D0%BD%D0%BD%D1%8B%D0%B5_%D0%BB%D0%B8%D1%86%D0%B0