Report 19820824A


August 24, 1982


Ronald Reagan (First Term)



Was 4(a)(1) Triggered? (Hostilities/Imminent Hostilities)

No, as stated in report

Was 4(a)(2) Triggered? (Combat- Equipped Introduction)

Yes, stated or used terms in statute

Was 4(a)(3) Triggered? (Substantial Enlargement)

No, as described in/inferred from report

Joint/Coalition Mission


Details: "close coordination with the Lebanese Armed Forces" and French and Italian military personnel "in the multinational force"

Article 51 Report to UN

Not applicable because no self-defense claim



Details: Assist Lebanon as part of multinational force "in carrying out its responsibilities concerning the withdrawal of Palestinian [PLO] personnel"

Domestic Legal Authority

Constitution (Art. II)

Details: "This deployment of the United States Armed Forces to Lebanon is being undertaken pursuant to the President's constitutional authority with respect to the conduct of foreign relations and as Commander-in-Chief of the United States Armed Forces."

Claimed International Legal Basis

Consent of territorial state

Details: "In response to the formal request of the Government of Lebanon"

Estimated Scope/Duration

Scope/duration specified

Details: "the United States military personnel will be withdrawn from Lebanon within thirty days"

Type of Enemy or Mission

Non-state actor

Details: Palestine Liberation Organization leadership, offices, and combatants in Beirut

Military Activity

Use of ground forces

Details: Deployment of 800 Marines "equipped with weapons consistent with their non-combat mission, including usual infantry weapons" to assist the Government of Lebanon with "withdrawal of Palestinian personnel"

US Casualties Reported


Non-US Casualties Reported