Some Croats, including some high-ranked officials and political leaders during the 1990s and far-right organization members, have attempted to minimize the magnitude of the genocide perpetrated against Serbs and other ethnic minorities in the World War II puppet state of Nazi Germany, the Independent State of Croatia. By 1989, the future President of Croatia Franjo Tuđman (who had been a Partisan during World War II), had embraced Croatian nationalism and published "", in which he questioned the official number of victims killed by the Ustaše during the Second World War, particularly at the Jasenovac concentration camp. Yugoslav and Serbian historiography had long exaggerated the number of victims at the camp. Tuđman criticized the long-standing figures, but also described the camp as a "work camp", giving an estimate of between 30,000 and 40,000 deaths. Tuđman's government's toleration of Ustaša symbols and their crimes often dismissed in public, frequently strained relations with Israel.