The Łódź Ghetto (German: Ghetto Litzmannstadt) was a World War II ghetto established for Polish Jews and Roma following the 1939 invasion of Poland. It was the second-largest ghetto in all of German-occupied Europe after the Warsaw Ghetto. Situated in the city of Łódź, and originally intended as a preliminary step upon a more extensive plan of creating the Judenfrei province of Warthegau, the ghetto was transformed into a major industrial centre, manufacturing much needed war supplies for Nazi Germany and especially for the German Army. The number of people incarcerated in it was augmented further by the Jews deported from the Reich territories.