(i) The gradual removal, among Member States, of obstacles to the free movement of persons, goods, services and capital and the right of residence and establishment; (j) The establishment of a Community Solidarity, Development and Compensation Fund; (k) The granting of special treatment to Member States classified as least developed countries and the adoption of special measures in favour of land-locked, semi-land-locked and island countries; (l) The harmonisation and rationalisation of the activities of existing African multinational institutions and the establishment of such institutions, as and when necessary, with a view to their possible transformation into organs of the Community; (m) The establishment of appropriate organs for trade in agricultural and cultural products, minerals, metals, and manufactured and semimanufactured goods within the Community; (n) The establishment of contacts and the promotion of information flow among trading organisations such as State commercial enterprises, export promotion and marketing bodies, chambers of commerce, associations of businessmen, and business and advertising agencies; (o) The harmonisation and co-ordination of environmental protection policies; and (p) Any other activity that Member States may decide to undertake jointly with a view to attaining the objectives of the Community. Article 5 General Undertakings 1. Member States undertake to create favourable conditions for the development of the Community and the attainment of its objectives, particularly by harmonising their strategies and policies. They shall refrain from any unilateral action that may hinder the attainment of the said objectives. 2. Each Member State shall, in accordance with its constitutional procedures, take all necessary measures to ensure the enactment and dissemination of such legislation as may be necessary for the implementation of the provisions of this Treaty. 3. Any Member State, which persistently fails to undertakings under this Treaty or fails to abide regulations of the Community, may be subjected Assembly upon the recommendation of the Council. 9 honour its general by the decisions or to sanctions by the Such sanctions may