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Report 20240124A

Date

January 24, 2024

Administration

Joe Biden (Current Term)

Location

Yemen

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

Yes

Details: "as part of a multinational operation alongside the United Kingdom, with support from Australia, Bahrain, Canada, and the Netherlands"

Article 51 Report to UN

Yes

Details: S/2024/108

Purpose/Mission

Respond to threat

Details: "I directed the strikes in order to protect and defend our personnel and assets, to degrade and disrupt the ability of the Houthi militants to carry out future attacks against the United States and against vessels operating in the Red Sea region, and to prevent the Houthi militants from conducting or supporting further attacks that could further destabilize the region and threaten United States strategic interests. The strikes were taken to deter and degrade Houthi capacity to conduct future attacks"

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

Self-Defense

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 January 22, 2024, at my direction, United States forces as part of a multinational operation... conducted discrete strikes"

Type of Enemy or Mission

Non-state actor

Details: "Yemen-based Houthi militants"

Military Activity

Air operations

Details: "discrete strikes against Houthi underground storage sites and locations associated with the Houthis’ missile and air surveillance capabilities in Yemen that support and facilitate Houthi militants’ attacks in the Red Sea region."

US Casualties Reported

Unknown

Non-US Casualties Reported

Unknown