Jasenovac concentration camp (Croatian, Serbian: Logor Jasenovac; Serbian Cyrillic: Логор Јасеновац. Yiddish: יאסענאוואץ, Hebrew: יסנובץ, sometimes spelled "Yasenovatz") was the largest extermination camp in the Independent State of Croatia (NDH) and occupied Yugoslavia during World War II.
The camp was established by the Croatian Ustashe (Ustasha) regime in August 1941 and dismantled in April 1945. Jasenovac was a complex of five subcamps spread over 240 km2 (93 sq mi) on the banks of the Sava River.
Since the end of World War II, political and ideological conflicts in the area have made the documentation and verification of Serbian victim statistics is extremely difficult. However, the numbers of Jews killed have not been disputed - roughly 20,000 Jews were killed at Jasenovac, mostly Sephardim of Serbia, Albania, Croatia, Slovenia, Bosnia and a few from Montenegro.
Further research on the victims of the Ustaša regime in Croatia during World War II is necessary to enable historians and demographers to determine more precisely the number of people who perished under the rule of the Independent State of Croatia. - United States Holocaust Memorial Museum