Treblinka was one of the most notorious extermination camps established by Nazi Germany during World War II, located in occupied Poland. It played a central role in the implementation of the 'Final Solution,' where over 800,000 Jews were murdered between 1942 and 1943, primarily through gas chambers. The camp's brutal efficiency exemplified the systematic extermination of the Jewish population as orchestrated by the Nazis after key decisions made during the Wannsee Conference.