Originally Posted by Mutt

um - did you even read that Wikipedia article? it's about Russian JEWS, Jews under the Czar had been restricted to living in an area called the Pale of Settlement, it was the largest population of Jews in the world, the area included parts of present day Russia, Ukraine, Poland, Lithuania - many of the Russian Jews in that area had moved into cities in Russia in the years before the war. When Hitler invaded Russia he did round up the Russian Jews and had mobile vans to gas them - it was the logistical problems with that method that led to the building of the Nazi death camps with gas chambers.