1. Treaty of London (1915): This secret agreement between the United Kingdom, France, Russia, and Italy promised to support each other and not to make a separate peace with Germany.
2. Treaty of Bucharest (1916): This treaty between Romania and the Allied Powers aimed to bring Romania into the war on their side.
3. Treaty of Saint-Germain (1919): This treaty between the Allies and Austria ended World War I for Austria.
4. Treaty of Trianon (1920): This treaty between the Allies and Hungary ended World War I for Hungary.
5. Treaty of Neuilly (1919): This treaty between the Allies and Bulgaria ended World War I for Bulgaria.
6. Treaty of Sèvres (1920): This treaty between the Allies and the Ottoman Empire ended World War I for the Ottoman Empire.