Ustasa Militia photographer (1941-1945) | Los Angeles Museum of the Holocaust

The Ustasa were Croatian nationalist, fascist, terrorist movement created in 1930. Ustasa was led by Ante Pavelic.

The Nazis created a Croatian satellite state, and allowed the Ustasa to run a puppet government with Pavelic at its head. During their four years in power, the Ustasa carried out a Serb genocide, exterminating over 500,000, expelling 250,000, and forcing another 250,000 to convert to Catholicism. The Ustasa also killed most Croatia's Jews, 20,000 gypsies, and many thousands of their political enemies.

The Ustasa government was dissolved in May 1945. After the war, most of the Ustasa leaders escaped to South America and Spain.