| 31. | Customary international law can be distinguished from treaty law, which consists of explicit agreements between nations to assume obligations.
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| 32. | The United States itself has not signed UNCLOS, but has accepted all but Part XI as customary international law.
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| 33. | The right of self-defense is permitted, when the conditions of customary international law regarding necessity and proportionality are met.
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| 34. | It argued that the FTT was " in conformity both with customary international law and EU primary law ".
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| 35. | The Court has subsequently held that the UN Charter prohibition on the use of force constituted customary international law.
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| 36. | Return of refugees to a territory where they face persecution constitutes . . . a breach of customary international law,
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| 37. | It is also an accepted principle of customary international law and is recognised between countries as a matter of practicality.
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| 38. | Notably, the four Geneva Conventions establish Hague Conventions, as well as subsequent treaties, case law, and customary international law ."
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| 39. | In addition, there are many more body of Customary International Laws ( CIL ) that come into effect when necessary.
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| 40. | That group adopted a set of comments on the work of the International Law Commission on identification of customary international law.
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