Following forced expulsion and campaigns of ethnic cleansing, substantial portions of national communities affected by conflict no longer live within the boundaries of the state. Nevertheless, existing wartime and postwar public opinion research is largely confined to countries directly affected by conflict. As a result, current research may overlook important war-affected populations and processes shaping their opinions. I address this problem by examining the question: does incorporation in settlement countries reduce support for conflict ideology? Examining this question requires new microdata. I examine the results of a large-scale survey of ex-Yugoslavs in Sweden. The findings suggest that incorporation undermines support for conflict ideology by increasing the socioeconomic security and social identity complexity of migrants. This has important implications for multiculturalism policies in the context of the current global migration crisis.