France among the Security Council's five permanent members and NATO's founding twelve
Background
The United Nations Security Council's page on its current members states that the Council is composed of 15 Members: five permanent members, namely China, France, Russian Federation, the United Kingdom, and the United States, and ten non-permanent members elected for two-year terms by the General Assembly. The same page notes that more than 50 United Nations Member States have never been Members of the Security Council. France is also an original member of the Atlantic Alliance. NATO records that on 4 April 1949 the Foreign Ministers from 12 countries signed the North Atlantic Treaty, also known as the Washington Treaty, and that NATO's founding member countries were Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom and the United States. At present, NATO has 32 member countries.
In plain words
Non-permanent member Non-permanent member of the UN Security Council — One of the ten Council seats filled by election in the General Assembly for a term of two years.
Washington Treaty North Atlantic Treaty — The founding treaty of NATO, signed by the foreign ministers of twelve countries in Washington, D.C.