Security Council Resolution 509 (1982) [on the Situation Along the Lebanese-Israeli Border]

Demands that Israel withdraw all its military forces forthwith and unconditionally to the internationally recognized boundaries of Lebanon;

Demands that all parties observe strictly the tenm of paragraph I of resolution 508 (1982) which call~<_i on them to cease immediately and simultaneously all military activities within Lebanon and across the Lebanese-Israeli border;

Calls on all parties to communicate to the Secretary General their acceptance of the present resolution within twenty-four hours;