The Kosovo Liberation Army (abbreviated KLA; —) was an ethnic-Albanian paramilitary organisation which sought the separation of Kosovo from Yugoslavia during the 1990s and the eventual creation of a Greater Albania. Its campaign against Yugoslav security forces, police, government officers and ethnic Serb villages precipitated a major Yugoslav military crackdown which led to the Kosovo War of 1998–1999. Military intervention by Yugoslav security forces led by Slobodan Miloševic and Serb paramilitaries within Kosovo prompted an exodus of Kosovar Albanians and a refugee crisis that eventually caused NATO to intervene militarily in order to stop what was widely identified as an ongoing campaign of ethnic cleansing. Later the United Nations International Criminal Tribunal for the Former Yugoslavia (ICTY) legally found that Serbia "use[d] violence and terror to force a significant number of Kosovo Albanians from their homes and across the borders, in order for the state authorities to maintain control over Kosovo... This campaign was conducted by army and Interior Ministry police forces (MUP) under the control of FRY and Serbian authorities, who were responsible for mass expulsions of Kosovo Albanian civilians from their homes, as well as incidents of killings, sexual assault, and the intentional destruction of mosques."