June 25, 2025
Expert says US was not acting in self-defence
US administration’s argument “it was acting in collective self-defence”. The U.S. and Israel launched coordinated air and covert operations against Iran’s nuclear facilities in Natanz, Fordow, and Isfahan from June 13–22. U.S. intelligence now indicates these strikes only set Iran’s program back by “a month or two,” not eliminating it as publicly claimed. Despite sealing facility entrances, Iran’s underground centrifuges remain intact, raising concerns about the campaign’s long-term effectiveness. Legal collective self-defense under international law refers to the right of states to defend not only themselves but also other states when they are attacked, with that state’s consent. It is primarily governed by Article 51 of the United Nations Charter, which states:
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An Armed Attack Must Occur:
There must be a clear and identifiable armed attack against a UN member state. -
Consent by the Affected State:
Collective defense can only be invoked if the state under attack requests help. Assistance without such consent is not lawful under Article 51. -
Reporting to the UN Security Council:
Any use of force under Article 51 must be reported immediately to the UN Security Council. -
Temporary Measure Until UN Acts:
Collective defense is permitted only until the Security Council takes measures to maintain international peace and security. -
Proportionality and Necessity:
Any use of force must meet the customary international law principles of proportionality (the response must not exceed what is necessary) and necessity (force must be a last resort).





