Maritime Law
Distinguishing Piracy, Armed Attack, and Blockade
International law draws sharp distinctions between different categories of hostile acts at sea, each with a different legal framework and consequence. "Piracy" under UNCLOS is legally confined to private, non-state actors acting for private ends on the high seas; attacks attributable to a state's armed forces or state-directed proxies during an armed conflict are instead governed by the law of naval warfare and the law of armed conflict, not piracy law.
- UNCLOS Article 101 defines piracy as illegal acts of violence committed for private ends by the crew of a private ship, on the high seas, against another ship — a definition that legally excludes state-directed military strikes.
- A "blockade" under the law of naval warfare is the interdiction of access to an enemy's coast; it must be declared, effective, and applied impartially to be lawful, and using it against neutral commercial shipping in an international strait used for transit passage raises separate legal issues under UNCLOS Part III.
- Attacks on neutral-flagged commercial vessels transiting international straits during an armed conflict implicate both the law of the sea (UNCLOS Articles 44-45, non-suspension of transit passage) and international humanitarian law (distinction between military and civilian objects).
● Tracked since March 06, 2026 · last seen August 15, 2026 · updates as the daily brief publishes
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