ARTICLE A By this Treaty, the High Contracting Parties establish among themselves a European Union, hereinafter called "the Union". This Treaty marks a new stage in the process of creating an ever closer union among the peoples of Europe, in which decisions are taken as closely as possible to the citizen. The Union shall be founded on the European Communities, supplemented by the policies and forms of cooperation established by this Treaty. Its task shall be to organize, in a manner demonstrating consistency and solidarity, relations between the Member States and between their peoples. ARTICLE B The Union shall set itself the following objectives: - to promote economic and social progress which is balanced and sustainable, in particular through the creation of an area without internal frontiers, through the strengthening of economic and social cohesion and through the establishment of economic and monetary union, ultimately including a single currency in accordance with the provisions of this Treaty; - to assert its identity on the international scene, in particular through the implementation of a common foreign and security policy including the eventual framing of a common defence policy, which might in time lead to a common defence; - to strengthen the protection of the rights and interests of the nationals of its Member States through the introduction of a citizenship of the Union; - to develop close cooperation on justice and home affairs; - to maintain in full the "acquis communautaire" and build on it with a view to considering, through the procedure referred to in Article N(2), to what extent the policies and forms of cooperation introduced by this Treaty may need to be revised with the aim of ensuring the effectiveness of the mechanisms and the institutions of the Community. The objectives of the Union shall be achieved as provided in this Treaty and in accordance with the condition and the timetable set out therein while respecting the principle of subsidiarity as defined in Article 3b of the Treaty establishing the European Community. ARTICLE C The Union shall be served by a single institutional framework which shall ensure the consistency and the continuity of the activities carried out in order to attain its objectives while respecting and building upon the "acquis communautaire". The Union shall in particular ensure the consistency of its external activities as a whole in the context of its external relations, security, economic and development policies. The Council and the Commission shall be responsible for ensuring such consistency. They shall ensure the implementation of these policies, each in accordance with its respective powers.