A peremptory norm (also called jus cogens) is a fundamental principle of international law that is accepted by the international community of states as...

aggression, or crimes against humanity. Jus cogens and customary international law are not interchangeable. All jus cogens are customary international law through...

supersede older treaties and new treaties may override older custom. Also, jus cogens (peremptory norm) is a custom, not a treaty. Judicial decisions and juristic...

the rejection of right of conquest in modern international law and the jus cogens norm of prohibition on the acquisition of territory through force. Talmon...

Protocol. It is debatable whether non-refoulement is a Peremptory norm (jus cogens) of international law, where non-refoulement must always be applied without...

United States objected was not merely customary international law but jus cogens, a norm from which no derogation was permitted. However, this could also...

perpetrators of the most serious crimes of international law (or crimes of the Jus Cogens which include genocide, crimes against humanity, war crimes, and aggression)...

community (erga omnes) and fundamental principles of international law (jus cogens), making them prosecutable in any court that invokes this principle. While...

invalidated, and thus rendered unenforceable, if it violates a preemptory norm (jus cogens), such as permitting a war of aggression or crimes against humanity. A...

legally enforceable, either recognized as a binding obligation under jus cogens principles or established by constitution or statute. Under the Westminster...

eliminate state immunity would effectively derogate from a peremptory, or jus cogens norm; and immunity was lost because the claimants had no other means of...

Rapporteur, to give content to Jus Cogens, by identifying how rules and norms are elevated to the status of Jus Cogens and determining the impact of these...

and more universally by the Convention Against Torture, it is also a jus cogens norm under international law and can therefore be invoked as a bar even...

omnes, or owed to the entire world community, as well as the concept of jus cogens. In 1993, Belgium passed a law of universal jurisdiction to give its court's...

Other legal scholars have further argued that the Declaration constitutes jus cogens, fundamental principles of international law from which no state may deviate...

JSTOR 422034. Cohen, Jean L. (2019). "Populism and the Politics of Resentment". Jus Cogens. 1 (1): 5–39. doi:10.1007/s42439-019-00009-7. Cramer, Katherine J. (2016)...

sovereignty in 1974. Alina Kaczorowska-Ireland argues that under the jus cogens rule forceful annexations including the annexation of Goa are held as...

self-determination and the prohibition against the threat or use of force as jus cogens norms of modern international law. The United Nations Charter, the Draft...

occupation has become illegal over time for being in violation of three jus cogens norms of international law: the prohibition on the acquisition of territory...

omnes, or owed to the entire world community, as well as the concept of jus cogens. In 1993, Belgium passed a "law of universal jurisdiction" to give its...

the ICJ's acceptance of it in the Barcelona Traction case. Inter partes Jus cogens (peremptory norm) Hathaway, Oona A.; Mills, Maggie; Poston, Thomas M....

even make things worse. The prohibition of torture is a peremptory norm (jus cogens) in international law, meaning that it is forbidden for all states under...

customs. The adoption of the VCLT in 1969 established the concept of jus cogens, or peremptory norms, which are "a norm accepted and recognized by the...

prohibition of the use of force, which is regarded as one of the rules of jus cogens...On one occasion I had to note with deep regret the experts' conclusion...

maintains that the death penalty for juveniles has become contrary to a jus cogens of customary international law. A majority of countries are also party...

collective defense, or – it seems – the enforcement of the criminal law of jus cogens. It has made formal declaration of war uncommon after 1945. Reading the...

treaties, and other international law, e.g., customary international law or jus cogens, is made; such states may thus be partly monist and partly dualist. In...

change the national identity of the sovereign state appears to violate the jus cogens rights of the nation. Treaty of revision of the national identity could...

Some treaties expressly disallow derogations, related to the idea of jus cogens, or international norms from which derogation is considered unjustifiable...

relevant treaty provisions were void for conflict with the over-riding jus cogens principles of the sovereign equality of nations and entitlement to freedom...