One explanation for the recent population decrease is the Croatian War of Independence. During the war, large sections of the population were displaced and emigration increased. In 1991, in predominantly Serb areas, more than 400,000 Croats and other non-Serbs were either removed from their homes by the Croatian Serb forces or fled the violence. In 1995, during the final days of the war, more than 120,000 and perhaps as many as 200,000 Serbs fled the country before the arrival of Croatian forces during Operation Storm. Within a decade following the end of the war, only 117,000 Serb refugees returned out of the 300,000 displaced during the entire war. According to 2001 Croatian census there were 201,631 Serbs in Croatia, compared to the census from 1991 when the number was 581,663. Most of Croatia's remaining Serbs never lived in areas occupied in the Croatian War of Independence. Serbs have been only partially re-settled in the regions they previously inhabited, while some of the settlements previously inhabited by Serbs were settled by Croat refugees from Bosnia and Herzegovina, mostly from Republika Srpska.