In contrast to Slovak Jews, who were mostly deported by the First Slovak Republic directly to Auschwitz, Treblinka, and other extermination camps, most Czech Jews were initially deported by the German occupiers with the help of local Czech Nazi collaborators to Theresienstadt concentration camp and only later killed. However, some Czech Jewish children were rescued by Kindertransport and escaped to the United Kingdom and other Allied countries. Some were reunited with their families after the war, while many lost parents and relatives to the concentration camps.[citation needed]