A reference book on a founding event: the Peace Conference which in 1919 would lead to the Treaty of Versailles ending the First World War. For 6 months, the leaders of three allied powers (Wilson, Clemenceau and Lloyd George) rub shoulders daily, and a host of characters from around the world flock to Paris to advance the interests of their respective peoples. This all-out negotiations and events that take place in parallel to the ground the world out of the interwar period - and, in many ways, today's world, as it is true that while some "problems" born of the Treaty (the borders of Germany and its neighbors, the Japanese presence in China ...) will be involved in the outbreak of the Second World War, other topics appeared at that time are still valid : The "Jewish national home" in Palestine, the place of Turkey in Europe, etc.