[Article 26U.K.Relationship with other international instruments
(1)This Convention shall be interpreted so far as possible to be compatible with other treaties in force for Contracting States, whether concluded before or after this Convention.
(2)This Convention shall not affect the application by a Contracting State of a treaty, whether concluded before or after this Convention, in cases where none of the parties is resident in a Contracting State that is not a Party to the treaty.
(3)This Convention shall not affect the application by a Contracting State of a treaty that was concluded before this Convention entered into force for that Contracting State, if applying this Convention would be inconsistent with the obligations of that Contracting State to any non-Contracting State. This paragraph shall also apply to treaties that revise or replace a treaty concluded before this Convention entered into force for that Contracting State, except to the extent that the revision or replacement creates new inconsistencies with this Convention.
(4)This Convention shall not affect the application by a Contracting State of a treaty, whether concluded before or after this Convention, for the purposes of obtaining recognition or enforcement of a judgment given by a court of a Contracting State that is also a Party to that treaty. However, the judgment shall not be recognised or enforced to a lesser extent than under this Convention.
(5)This Convention shall not affect the application by a Contracting State of a treaty which, in relation to a specific matter, governs jurisdiction or the recognition or enforcement of judgments, even if concluded after this Convention and even if all States concerned are Parties to this Convention. This paragraph shall apply only if the Contracting State has made a declaration in respect of the treaty under this paragraph. In the case of such a declaration, other Contracting States shall not be obliged to apply this Convention to that specific matter to the extent of any inconsistency, where an exclusive choice of court agreement designates the courts, or one or more specific courts, of the Contracting State that made the declaration.
(6)This Convention shall not affect the application of the rules of a Regional Economic Integration Organisation that is a Party to this Convention, whether adopted before or after this Convention—
(a)where none of the parties is resident in a Contracting State that is not a Member State of the Regional Economic Integration Organisation;
(b)as concerns the recognition or enforcement of judgments as between Member States of the Regional Economic Integration Organisation.]