Permanent Mission of Finland to the United Nations, New York | 4,497 followers on LinkedIn. Promoting Finland's foreign policy priorities and values in multilateral cooperation at the United Nations in New York. | Finland became a member of the United Nations in 1955. From the very beginning, the United Nations became an important part of Finland’s foreign policy. In light of our historical experience, Finland felt it important to support an international system based on multilateralism and the Charter of the United Nations.