Article 28

1. Where the international situation requires operational action by the Union, the Council shall adopt the necessary decisions. They shall lay down their objectives, scope, the means to be made available to the Union, if necessary their duration, and the conditions for their implementation.

If there is a change in circumstances having a substantial effect on a question subject to such a decision, the Council shall review the principles and objectives of that decision and take the necessary decisions.

2. Decisions referred to in paragraph 1 shall commit the Member States in the positions they adopt and in the conduct of their activity.

3. Whenever there is any plan to adopt a national position or take national action pursuant to a decision as referred to in paragraph 1, information shall be provided by the Member State concerned in time to allow, if necessary, for prior consultations within the Council. The obligation to provide prior information shall not apply to measures which are merely a national transposition of Council decisions.

4. In cases of imperative need arising from changes in the situation and failing a review of the Council decision as referred to in paragraph 1, Member States may take the necessary measures as a matter of urgency having regard to the general objectives of that decision. The Member State concerned shall inform the Council immediately of any such measures.

5. Should there be any major difficulties in implementing a decision as referred to in this Article, a Member State shall refer them to the Council which shall discuss them and seek appropriate solutions. Such solutions shall not run counter to the objectives of the decision referred to in paragraph 1 or impair its effectiveness.