The Warsaw Ghetto in Poland was the largest ghetto in Europe. Warsaw had a large Jewish population, making up about a third of the city. The ghetto was formed in a very small area in the city, and the Warsaw Jews were crammed into this space. With others being brought from other towns and villages, the number of Jews in the Warsaw Ghetto increased to about 450,000. The Jews themselves were forced to build the wall around the ghetto while often violent guards stood over them. The purpose of the wall was to keep the Jewish people inside and out of sight of the rest of the world. Conditions inside the ghetto were awful. Sickness, starvation, and death were constant threats to the people there. 80,000+ died behind the walls of the Warsaw Ghetto.