1919-1920 WWI end, “Treaty of Versailles” signed
After the end of World War I, about 30 countries held an international meeting called “Paris Peace Conference” on January 18, 1919. President of the United States Woodrow Wilson, Prime Minister of the United Kingdom Lloyd George and Prime Minister of France Georges Clemenceau were the leaders of the meeting. Defeated Nations include Germany were not invited to the meeting. The purpose of this meeting is to established the terms of peace after World War I and discuss how to deal with defeated nation.

The consequence of the meeting is “Treaty of Versailles” signed. Treaty of Versailles create many limits on defeated countries. Germany's military was to be limited to 100,000 soldiers and German navy have to be reduced its scale. Germany was also not allowed to produce military equipment such as tank and aircraft. Territorially, Alsace-Lorraine was returned to France from Germany. Financially, Germany was issued a war reparations bill totaling £6.6 billion. After Treaty of Versailles signed, Germans took to the streets in protest because of the unfair items from the treaty. (Hickman, Kennedy. “Aftermath of World War I: The Seeds of Future Conflict Sown The Treaty of Versailles.” ThoughtCo., 18 February. 2018, Accessed 3 June 2020. )
In general, “Treaty of Versailles” didn’t solve the main issues and conflict between European countries. This treaty was seen as leading to many of the causes of World War II.