The leader of Austria's far-right Freedom Party (FPO) has blamed the United States and the NATO Western military alliance for triggering the refugee crisis that has overwhelmed Europe."The USA and NATO have destroyed Iraq and Libya with their military intervention, bombs and missiles; provided financial, logistical and military support to the opposition against President Assad in Syria, and thus made possible the destruction, chaos, suffering and radical Islamism (IS) in the region," Heinz-Christian Strache said on his Facebook page.Strache's opposition FPO party, which leads opinion polls ahead of the centrist Social Democrats and People's Party coalition partners, typically espouses anti-Muslim and isolationist approaches to dealing with foreign policy.