How did the breakup of Yugoslavia contribute to the Bosnian War?

The breakup of Yugoslavia was a primary catalyst for the Bosnian War, as the collapse of the federal structure triggered competing nationalist agendas and territorial disputes.12

As Slovenia and Croatia moved toward independence in 1991, the political stability of the region disintegrated. In Bosnia and Herzegovina, the population was ethnically diverse, and the prospect of independence created deep divisions. While Bosniaks and Croats largely favored secession, the Serb Democratic Party opposed it, fearing the loss of their status within a rump Yugoslav state.12

The transition toward independence exacerbated these tensions in several ways:

• Separatist Resistance: Backed by the Milošević regime and the Yugoslav People’s Army, local Serb militias established autonomous regions within Bosnia to prevent its separation from the Yugoslav federation.132
• Territorial Ambitions: The conflict was further complicated by the interests of neighboring states, as Croatian units sought to secure areas with Croat majorities, leading to a multi-sided war.12
• Institutional Collapse: The breakdown of the central government allowed for the rise of nationalist politics, which replaced cooperation with ethnic cleansing and violence as forces vied for control over territory.13

Ultimately, the declaration of independence by Bosnia and Herzegovina in 1992, following a referendum largely boycotted by Bosnian Serbs, served as the immediate trigger for the outbreak of full-scale war.2