Bosnia-Herzegovina, once thought to be on the way to joining the North Atlantic Treaty Organization (NATO) and the European Union (EU), is instead falling behind, mired in political bickering, economic stalemate, and governmental dysfunction. In this difficult situation, Islamism poses a significant threat to Bosnia's fragile domestic stability. Although the levels of Islamist terrorism and separatist movements are comparable to those elsewhere in Europe, they are particularly troublesome in Bosnia for two reasons. First, senior political and religious Bosniak (Muslim) leaders have long-standing ties to the Muslim Brotherhood and Islamist terrorism, including al-Qaeda and Iran, that they are very reluctant to abandon. Second, Islamism contributes significantly to Bosnia's dysfunction as a country. Calls to re-impose traditional Islamic law, or sharia, arouse opposition from Bosnian Serbs and Croats, as does the nostalgia for the Ottoman Empire and Islamic Caliphate shared by key Bosniak leaders, the Organization of Islamic Cooperation (OIC), and the Turkish government.