A gas van or gas wagon (Russian: душегубка, dushegubka, literally "soul killer"; German: Gaswagen) was a truck reequipped as a mobile gas chamber. During World War II Nazi Germany developed and used gas vans on a large scale as an extermination method to murder inmates of asylums, Romani people, Jews, and prisoners in occupied Belarus, Poland, Yugoslavia, and other areas of the Nazi-occupied USSR.[2][3]