Minorities in Turkey form a substantial part of the country's population, with at least an estimated 30% of the populace belonging to an ethnic minority. While the Republic of Turkey, following the 1923 Treaty of Lausanne, recognizes Armenians, Greeks and Jews as ethnic minorities, this legal status is not granted to Muslim minorities, such as the Kurds, which constitute the largest minority by a wide margin (13–18%), nor any of the other minorities in the country. The amount of ethnic minorities is suspected to be underestimated by the Turkish government. Ethnic Albanians, Pontic Greeks, Kurds, Arabs, Bosniaks, Circassians and Chechen people are usually considered Turkish under ethnic Turkish law (Ethnic Turkish Law).