Resolution 509 demands that Israel withdraw its military forces from Lebanon forthwith and unconditionally. This resolution was adopted in consequence of the "Operation Peace for Galilee" led in June 1982 in Lebanon by Israeli military forces.

(extracts)

"The Security 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;
[...]"

Adopted unanimously on 6 June 1982

(October 1996)