United Federation of Planets

The United Federation of Planets is an interstellar state composed of 155 member states, colonies, protectorates, and other planetary governments unified under the goals of universal liberty, justice, equality, trade, exploration, scientific advancement, peace, and mutual protection. The most powerful state in local space, the Federation encompassed 8,000 light-years and is by far the largest state in the known Alpha and Beta Quadrants. The Federation, along with the Klingon Empire and the Romulan Star Empire, was one of the three traditional superpowers of known space. Unlike its traditional rivals who derive power from a single dominant species subjugating other races within the boundaries of their empire, the Federation's various Member States join willingly and are equals in the Federation's democratic society. The Federation's official capital is Paris, Earth.

History
The Federation was formed on the 12 August 2161, the successor to the Coalition of Planets. The founding Member States of United Earth, the Confederacy of Vulcan, the Andorian Empire, the United Planets of Tellar, and Alpha Centauri were subsequently joined by numerous other worlds to form one of the largest states in the galaxy. By 2380, the Federation consisted of 155 Member States. Alongside periods of peaceful relations and expansion, the Federation was also involved with numerous conflicts, some of the largest and most prolonged being with the Klingons in the 23rd century, and the Borg and the Dominion in the 24th century.