* Treaty of Versailles (1919): This treaty ended World War I and required Germany to make significant concessions, including the loss of territory, reparations payments, and the demilitarization of the Rhineland.
* Locarno Treaties (1925): These treaties guaranteed the borders of Germany, Belgium, and France and provided for the peaceful resolution of disputes.
* Kellogg-Briand Pact (1928): This treaty outlawed war as an instrument of national policy.
* Munich Agreement (1938): This agreement allowed Germany to annex the Sudetenland region of Czechoslovakia without a fight.
* Non-Aggression Pact (1939): This treaty between Germany and the Soviet Union pledged both countries to neutrality in the event of war between either of them and a third power.
During World War II:
* Atlantic Charter (1941): This agreement between the United States and the United Kingdom outlined their goals for the postwar world, including the establishment of a lasting peace and the promotion of human rights.
* Declaration of the United Nations (1942): This declaration was signed by 26 nations and pledged to fight against the Axis powers and to establish a new international organization to maintain peace and security.
* Yalta Conference (1945): This meeting between the leaders of the United States, the Soviet Union, and the United Kingdom produced a number of agreements, including the plan for the occupation of Germany and the creation of the United Nations.
* Potsdam Conference (1945): This meeting between the leaders of the United States, the Soviet Union, and the United Kingdom resulted in the Potsdam Declaration, which called for the unconditional surrender of Japan.