S/RES/509 (1982) 6 June 1982 RESOLUTION 509 (1982) Adopted by the Security Council at its 2375th meeting held on 6 June 1982 The Security Council, Recalling its resolutions 425 (1978) of 19 March 1978 and 508 (1982) of 5 June 1982, Gravely concerned at the situation as described by the Secretary- General in his report to the Council, Reaffirming the need for strict respect for the territorial integrity, sovereignty and political independence of Lebanon within its internationally recognized boundaries, 1. Demands that Israel withdraw all its military forces forthwith and unconditionally to the internationally recognized boundaries of Lebanon; 2. Demands that all parties observe strictly the terms of paragraph 1 of resolution 508 (1982) which called on them to cease immediately and simultaneously all military activities within Lebanon and across the Lebanese-Israeli border; 3. Calls on all parties to communicate to the Secretary-General their acceptance of the present resolution within 24 hours; 4. Decides to remain seized of the question.