The western two-thirds of Syria's Golan Heights region are since 1967 occupied by Israel and were in 1981 effectively annexed by Israel, whereas the eastern third is controlled by Syria, with the UNDOF maintaining a buffer zone in between, to implement the ceasefire of the Purple Line. Israel's 1981 Golan annexation law is not recognized in international law. The UN Security Council condemned it in Resolution 497 (1981) as "null and void and without international legal effect." Since then, General Assembly resolutions on "The Occupied Syrian Golan" reaffirm the illegality of Israeli occupation and annexation. The Syrian government continues to demand the return of this territory. The only remaining land Syria has in the Golan is a strip of territory which contains the abandoned city of Quneitra, the governorate's de facto capital Madinat al-Baath and many small villages, mostly populated by Circassians such as Beer Ajam and Hader. In March 2019, U.S. President Donald Trump announced that the United States will recognize Israel's annexation of the Golan Heights.