Vjekoslav `` Maks '' LuburiÄ , commander-in-chief of all the Croatian camps , announced the great `` efficiency '' of the Jasenovac camp at a ceremony on October 9 , 1942 ( keep in mind that Jasenovac operated until 1945 ) . Vjekoslav `` Maks '' LuburiÄ , commander-in-chief of all the Croatian camps , announced the great `` efficiency '' of the Jasenovac camp at a ceremony as early as 9 October 1942 .