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Report 19870924A

Date

September 24, 1987

Administration

Ronald Reagan (Second Term)

Location

Persian Gulf

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

Yes, described in/inferred from report

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

No, as described in/inferred from report

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

No, as described in/inferred from report

Joint/Coalition Mission

No

Article 51 Report to UN

Yes

Details: S/19149

Constitutional Caveat

Yes

Details: Reagan: “While being mindful of the historical differences between the Legislative and the Executive Branches of government, and the positions taken by all my predecessors in office, with respect to the interpretation and constitutionality of certain of the provisions of the War Powers Resolution, I nonetheless am providing this report in a spirit of mutual cooperation toward a common goal.”

Classified Annex Reported

No

Purpose/Mission

Respond to threat

Details: Respond to threat from “Iranian landing craft… engaging in nighttime minelaying near U.S. forces in international waters of the Persian Gulf. This hostile action posed a direct threat to the safety of U.S. warships and other U.S.-flag vessels.”

Domestic Legal Authority

Constitution (Art. II)

Details: “These limited defensive actions have been taken… pursuant to my constitutional authority with respect to the conduct of foreign relations and as Commander-in-Chief.”

Claimed International Legal Basis

Self-Defense

Details: “These actions taken by U.S. forces were conducted in the exercise of our right of self-defense under Article 51 of the United Nations Charter.”

Estimated Scope/Duration

Scope/duration specified

Details: Activity occurred Sept. 22, 1987

Type of Enemy or Mission

Nation-state

Details: Iran

Military Activity

Air operations Use of naval forces/vessels

Details: “[T]wo U.S. helicopters operating off the USS JARRETT engaged the Iranian vessel, which subsequently resumed its minelaying activities. Thereupon, the helicopters re-engaged… disabling it with rocket and machine gun fire”

US Casualties Reported

No

Non-US Casualties Reported

Yes

Details: “Three [Iranian navy] crewmen were found dead on the vessel”; 26 “survivors were recovered from the water and from lifeboats and taken to U.S. naval ships for examination and medical treatment;” “Two members of the crew of the IRAN AJR are believed missing”

Reporting as it Relates to Termination Clock

Fewer than 60 days sustained activity