A/RES/51/135 Page 2 Recalling its previous relevant resolutions in which, inter alia, it called upon Israel to put an end to its occupation of the Arab territories, Reaffirming once more the illegality of the decision of 14 December 1981 taken by Israel to impose its laws, jurisdiction and administration on the occupied Syrian Golan, which has resulted in the effective annexation of that territory, Reaffirming that the acquisition of territory by force is inadmissible under the Charter of the United Nations, Reaffirming also the applicability of the Geneva Convention relative to the Protection of Civilian Persons in Time of War, of 12 August 1949,3 to the occupied Syrian Golan, Bearing in mind Security Council resolution 237 (1967) of 14 June 1967, Welcoming the convening at Madrid of the Peace Conference on the Middle East on the basis of Security Council resolutions 242 (1967) of 22 November 1967 and 338 (1973) of 22 October 1973 aimed at the realization of a just, comprehensive and lasting peace, and stressing the need for rapid progress in all bilateral negotiations, 1. Calls upon Israel, the occupying Power, to comply with the relevant resolutions on the occupied Syrian Golan, in particular Security Council resolution 497 (1981), in which the Council, inter alia, decided that the Israeli decision to impose its laws, jurisdiction and administration on the occupied Syrian Golan was null and void and without international legal effect, and demanded that Israel, the occupying Power, should rescind forthwith its decision; 2. Also calls upon Israel to desist from changing the physical character, demographic composition, institutional structure and legal status of the occupied Syrian Golan and in particular to desist from the establishment of settlements; 3. Determines that all legislative and administrative measures and actions taken or to be taken by Israel, the occupying Power, that purport to alter the character and legal status of the occupied Syrian Golan are null and void, constitute a flagrant violation of international law and of the Geneva Convention relative to the Protection of Civilian Persons in Time of War, of 12 August 1949,3 and have no legal effect; 4. Calls upon Israel to desist from imposing Israeli citizenship and Israeli identity cards on the Syrian citizens in the occupied Syrian Golan, and to desist from its repressive measures against the population of the occupied Syrian Golan; 5. Deplores the violations by Israel of the Geneva Convention relative to the Protection of Civilian Persons in Time of War, of 12 August 1949; 6. Calls once again upon Member States not to recognize any of the legislative or administrative measures and actions referred to above; 3 United Nations, Treaty Series, vol. 75, No. 973.