A report (to Gestapo chief Heinrich Himmler
, dated 17 February 1942) on increased partisan activities stated that "Increased activity of the bands is chiefly due to atrocities carried out by Ustaše units in Croatia against the Orthodox population." The Ustaše committed their deeds not only against males of conscript age, but especially against helpless old people, women and children.
and 290,000 Serbs,
31,000 of the 40,000 Jews,
and almost all of the 25,000—40,000 Roma
were killed in the Independent State of Croatia by the Ustaše and their Axis allies. Both Jews and Gypsies were subject to a policy of total annihilation. According to an official Yugoslav report, only 1,500 out of 30,000 Croatian Jews remained alive at the end of World War II.
Approximately 26,000 Gypsies were murdered
of approximately 40,000 residents.