1. Without prejudice to Article 127(2), during the transition period, the United Kingdom shall be bound by the obligations stemming from the international agreements concluded by the Union, by Member States acting on its behalf, or by the Union and its Member States acting jointly, as referred to in point (a)(iv) of Article 2.*

2. During the transition period, representatives of the United Kingdom shall not participate in the work of any bodies set up by international agreements concluded by the Union, or by Member States acting on its behalf, or by the Union and its Member States acting jointly, unless:

(a) the United Kingdom participates in its own right; or

(b) the Union exceptionally invites the United Kingdom to attend, as part of the Union's delegation, meetings or parts of meetings of such bodies, where the Union considers that the presence of the United Kingdom is necessary and in the interest of the Union, in particular for the effective implementation of those agreements during the transition period; such presence shall only be allowed where Member States participation is permitted under the applicable agreements.

3. In accordance with the principle of sincere cooperation, the United Kingdom shall refrain, during the transition period, from any action or initiative which is likely to be prejudicial to the Union's interests, in particular in the framework of any international organisation, agency, conference or forum of which the United Kingdom is a party in its own right.

4. Notwithstanding paragraph 3, during the transition period, the United Kingdom may negotiate, sign and ratify international agreements entered into in its own capacity in the areas of exclusive competence of the Union, provided those agreements do not enter into force or apply during the transition period, unless so authorised by the Union.

5. Without prejudice to Article 127(2), whenever there is a need for coordination, the United Kingdom may be consulted, on a case-by-case basis.

6. Following a decision of the Council falling under Chapter 2 of Title V TEU, the United Kingdom may make a formal declaration to the High Representative of the Union for Foreign Affairs and Security Policy, indicating that, for vital and stated reasons of national policy, in those exceptional cases it will not apply the decision. In a spirit of mutual solidarity, the United Kingdom shall refrain from any action likely to conflict with or impede Union action based on that decision, and the Member States shall respect the position of the United Kingdom.

7. During the transition period, the United Kingdom shall not provide commanders of civilian operations, heads of mission, operation commanders or force commanders for missions or operations conducted under Articles 42, 43 and 44 TEU, nor shall it provide the operational headquarters for such missions or operations, or serve as framework nation for Union battlegroups. During the transition period, the United Kingdom shall not provide the head of any operational actions under Article 28 TEU.

* The Union will notify the other parties to these agreements that during the transition period the United Kingdom is to be treated as a Member State for the purposes of these agreements.