why - fleeing Nazi leadership, anti-semitism and German invasion (Britian had restrictions over number of refugees allowed but following 'Kristallnacht' they relaxed)
impact - British charities organised evacuation of Jewish children to Britain - known as 'Kindertransport'. Sponsored children lived with families and unsponsored lived in shelters
experience - experiences varied under foster families but some were put to work and mistreated whilst others were part of the family. Following end of war many joined army or left for USA or stayed and became very successful in science and the arts - could not return as parents dead