ECOWAS REVISED TREATY particularly agriculture, industry, transport, communications, energyand scientific research; ii) the total elimination of all obstacles to the free movement of people, goods, capital and services and the right of entry, residence and establishment; iii) the harmonisationof monetary, financial and fiscal policies, the setting up of a West African monetary union, the establishment of a single regional Central Bank and the creation of a single West African currency. The Authority may at any time, on the recommendation of the Council, decide that any stage of the integration process shall be implemented more rapidly than otherwise provided for in this Treaty. CHAPTER X CO-OPERATION IN POLITICAL, JUDICIAL AND LEGAL AFFAIRS, REGIONAL SECURITY AND IMMIGRATION ARTICLE 56 POLITICAL AFFAIRS 1. In pursuit of the integration objectives of the Community, Member States undertake to co-operate on political matters, and in particular, to take appropriate measures to ensure effective application of the provisions of this Treaty. 2. The signatory States to the Protocol on Non-Aggression, the Protocol on Mutual Assistance on Defence, the Community Declaration of Political Principles and the African Charter on Human and Peoples' Rights agree to co-operate for the purpose of realising the objectives of these instruments. ARTICLE 57 JUDICIAL AND LEGAL MATTERS 1. Member States undertake to co-operate in judicial and legal matters with a view to harmonising their judicial and legal systems. 2. The modalities for the implementation of this arrangement shall be the subject matter of a Protocol. 35