The 2016 PCA Award in Philippines v. China reshaped maritime law by rejecting China’s nine dash line claims, clarifying the limits of entitlements under UNCLOS, and stressing environmental protection. Beyond doctrine, it reinforced freedom of navigation, empowered smaller states, and continues to influence disputes worldwide.
The 1837 Caroline Incident transformed a border raid into a milestone in international law. From Webster’s correspondence with Ashburton emerged the Caroline Test, necessity and proportionality, as enduring benchmarks for lawful self-defense. Nearly two centuries later, these principles continue to guide states in responding to threats across land, sea, and cyberspace.
The Caroline Incident (1837) and the Self-Defense Principle in International Law Read More »
The ICJ’s ruling in Nicaragua v. United States remains one of the most influential decisions in international law. It clarified the prohibition on the use of force, strengthened the principle of non intervention, and narrowed the scope of collective self defense. At the same time, it revealed the limits of enforcement when powerful states refuse to comply, making it a lasting reminder of both the strength and fragility of international law.
Nicaragua v. United States: ICJ’s Landmark Ruling on Sovereignty and Use of Force Read More »
Cyber operations against ships pose growing risks to navigation, trade, and sovereignty. This article explains how international law applies the scale-and-effects test, why attribution is the gateway principle for lawful responses, and how sovereign immunity magnifies the consequences of attacks on warships and government vessels.
Maritime Autonomous Vessels (MAVs) challenge traditional doctrines under UNCLOS. This article defines their scope through IMO’s autonomy categories and explains why crew presence remains decisive for ship status. It further explores national security risks and the limits of sovereign immunity, arguing that unmanned MAVs should be treated as specialized equipment under coastal state jurisdiction.
Maritime Autonomous Vessels and Coastal State Security: A Restrictive Reading of UNCLOS Read More »
The right of hot pursuit allows coastal States to chase foreign vessels that violate their laws into the high seas, but only under strict safeguards. Anchored in UNCLOS Article 111 and clarified by cases like M/V Saiga (No. 2) and I’m Alone, the doctrine ensures accountability while respecting sovereignty and freedom of navigation.
Hot Pursuit at Sea: International Law, UNCLOS, and Case Lessons Read More »
A non-responsive vessel’s silence at sea does not automatically mean violation. This article explains how UNCLOS frames non-response as a factual condition, outlines jurisdiction by maritime zone, and highlights proportionality and restraint as guiding principles for lawful maritime measures.
Non-Responsive Foreign Vessels at Sea: UNCLOS Jurisdiction and Proportionate Responses Read More »
The South China Sea remains one of the world’s most contested maritime regions, rich in resources and vital for global trade. This article explains why a binding Code of Conduct is essential to uphold UNCLOS, integrate arbitral rulings, and transform ASEAN commitments into enforceable rules that safeguard peace, stability, and cooperation.
Anchoring Peace: The Significance of a Code of Conduct in the South China Sea Read More »
This article examines whether foreign military exercises are permitted inside another state’s EEZ under UNCLOS. It argues for a restrictive interpretation grounded in sovereign rights, the due regard obligation, and the peaceful purposes principle—offering a path to protect coastal state security and uphold a rules‑based maritime order.
Military Exercises in Another State’s EEZ: A Restrictive Interpretation Read More »
Sovereign immunity at sea under UNCLOS protects warships and government vessels from foreign jurisdiction. This guide explains the doctrine’s boundaries across maritime zones, clarifies which enforcement actions are legally prohibited, and highlights ITLOS rulings that shape defensible operational practice.
Sovereign Immunity at Sea Under UNCLOS: Meaning, Boundaries, and Operational Use Read More »
