International treaties and armed conflicts: an ever pending issue

Cástor Miguel Díaz Barrado
Catedrático de Derecho internacional público, Universidad Rey Juan Carlos de Madrid (Professor International Law, University Rey Juan Carlos. Madrid. Spain)

The question of the effects of armed conflicts on treaties remains a highly controversial one with many different positions being held on the matter. State practice does not offer any definitive solutions regarding their regulation. However, the work of the International Law Commission has clarified many of these doubts while providing elements of legal security. The draft articles on the effects of armed conflicts on treaties, adopted in 2011, constitute a useful instrument to understand the relationship between treaties and armed conflicts. The link between treaties and the prohibition of the use of force highlights the importance of this structural principle of International Law, which serves to limit the effects hostilities can have on conventional relations. Today, International Law offers a set of principles and guidelines on the basis of which the specific effects of this particular cause of the termination and suspension of treaties can be tested. The pacta sunt servanda principle stresses the value of the maintenance of treaties, in spite of hostilities. Thus, depending on the specific object of a treaty and other elements, the effects of armed conflicts on treaties are readily determined.

1. CONSIDERACIONES INICIALES.—2. USO DE LA FUERZA, TRATADOS Y DERECHO INTERNACIONAL.—2.1. Derecho de los tratados y conflictos armados.— 2.2. Efectos de los conflictos armados sobre los tratados y prohibición del uso de la fuerza.—3. PRINCIPIOS BÁSICOS DE LOS EFECTOS DE LOS CONFLICTOS ARMADOS EN LOS TRATADOS.—3.1. El principio de la continuidad de los tratados.—3.2. El principio de la aplicación de las disposiciones contenidas en los tratados.—3.3. El respeto de las normas generales sobre interpretación de los tratados.—3.4. Factores determinantes para decidir la terminación o suspensión de tratados en caso de conflicto armado.—3.5. La divisibilidad de los tratados.—4. TRATADOS EN ¿PERMANENTE? VIGOR.—5. Consideraciones finales.

application of rules on treaty interpretation in the event of an armed conflict; effects of armed conflicts on international treaties; factors favouring the continued operation of treaties during an armed conflict; operation of treaties in the event of armed conflicts; separability of treaty provisions as a consequence of an armed conflict; use of force and law of treaties;

REDI Vol. LXIV 2 2012



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