Report 20231122A


November 22, 2023


Joe Biden (Current Term)



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


Article 51 Report to UN


Details: S/2023/923


Respond to threat

Details: "The strikes were taken to deter future attacks ... to protect and defend our personnel who are in Iraq and Syria conducting military operations pursuant to the 2001 Authorization for Use of Military Force. The strikes were intended to degrade and disrupt the ongoing series of attacks against the United States and our partners, and to deter Iran and Iran-backed militia groups from conducting or supporting further attacks on United States personnel and facilities."

Domestic Legal Authority

Constitution (Art. II)

Details: "I directed this military action consistent with my responsibility to protect United States citizens both at home and abroad and in furtherance of United States national security and foreign policy interests, pursuant to my constitutional authority as Commander in Chief and Chief Executive and to conduct United States foreign relations."

Claimed International Legal Basis


Details: "The United States took this necessary and proportionate action consistent with international law, and in the exercise of the United States’ inherent right of self-defense as reflected in Article 51 of the United Nations Charter."

Estimated Scope/Duration

Scope/duration specified

Details: "On the night of November 21, 2023, at my direction, United States forces conducted discrete strikes "

Type of Enemy or Mission


Details: "facilities in Iraq used by the IRGC and IRGC-affiliated groups"

Military Activity

Air operations

Details: "United States forces conducted discrete strikes against facilities in Iraq used by the IRGC and IRGC-affiliated groups for command and control, logistics, and other purposes."

US Casualties Reported


Details: "These attacks, which have caused injuries to United States personnel, have placed under grave threat the lives of United States personnel and of Coalition forces operating alongside United States forces."

Non-US Casualties Reported