In total, the war caused 500,000 refugees and displaced persons. Around 196,000 to 247,000 (in 1993) Croats and other non-Serbs were displaced during the war from or around the RSK. The Organization for Security and Co-operation in Europe (OSCE) said that 221,000 were displaced in 2006, of which 218,000 had returned. Up to 300,000 Croats were displaced, according to other sources. The majority were displaced during the initial fighting and during the JNA offensives of 1991 and 1992. Some 150,000 Croats from Republika Srpska and Serbia have obtained Croatian citizenship since 1991, many due to incidents like the expulsions in Hrtkovci.