Partisan political divisions and isolationist concerns about Article 10 potentially forcing the U.S. to protect other countries meant that the U.S. Senate refused to ratify the Treaty of Versailles
Woodrow Wilson's goal of self-determination was not fully satisfied as the Treaty of Versailles was negotiated with France and Britain, which were massive global empires
The Locarno Treaties in 1925 aimed to improve diplomatic relations between Western European countries, leading to Germany joining the League of Nations in 1926
The Young Plan in 1929 revised the Dawes Plan, reducing Germany's reparations to 2 billion pounds and encouraging the withdrawal of Allied troops from Germany
The main part of the League, made up of permanent members (France, Italy, Britain, Japan) and temporary members, meeting 5 times a year and during emergencies