Original sentence: This is the result of the Convention Concerning the Exchange of Greek and Turkish Populations of 1923 and of the Treaty of Lausanne of 1924, when the old millet categories were used for the forced population exchanges of the Greek Orthodox Christians from Turkey (except from Istanbul, and the isles of Gökçeada and Bozcaada) and Muslims from Greece (except from Western Thrace), as well as for the protection of the two remaining recognized minorities, the "Muslims of Western Thrace" (Turks, Pomaks and Roms) and the "Greek Orthodox of Istanbul"
Edited sentence: This is the result of the Convention Concerning the Exchange of Greek and Turkish Populations of 1923 and of the Treaty of Lausanne of 1924, when the old millet categories were used for the forced population exchanges (reciprocal ethnic cleansing) of the Greek Orthodox Christians from Turkey (except from Istanbul, and the isles of Gökçeada and Bozcaada) and Muslims from Greece (except from Western Thrace), as well as for the protection of the two remaining recognized minorities, the "Muslims of Western Thrace" (Turks, Pomaks and Roms) and the "Greek Orthodox of Istanbul"