League of Peace and Freedom

The International League of Peace and Freedom (French: Ligue internationale de la paix et de la liberte) was a political international dedicated to building peace and freedom through the establishment of a United States of Europe. Founded by French republicans in the wake of the Luxembourg Crisis, the League aimed to unite European democrats of all tendencies under the platform of democratic republicanism, decentralisation and federalism.

Source: Wikipedia — League of Peace and Freedom (CC BY-SA 4.0)