Kindertransport.

Kindertransport, German for "children's transport," was the name given to a coordinated series of efforts that rescued thousands of Jewish children from Germany and Nazi-controlled territory near the beginning of World War II (1939–45). The evacuations began in 1938 after a growing tide of anti-Jewish sentiment in Germany erupted into violence. Most of the transports ended after war was declared in 1939, but some successful rescues were accomplished into 1940. The children were relocated to the United Kingdom, where they were supposed to stay until they could be returned to their parents after the war. In reality, most families were never reunited because many of the children's parents became victims of the Holocaust.