You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when did germany joined the league of nations?" whose answer is September 1926;.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did germany join the league of nations
Useful Output:

Doc 1: This international organisation was set up by the Treaty of Versailles and Germany joined in September 1926. Entry into the League was needed for the Locarno
Doc 2: In September 1926, Germany was admitted to the League, to join all the other great powers. Germany was allowed to sit on the League of Nations
Doc 3: Germany withdrew from the League, as did Japan, Italy, Spain, and others. The onset of the Second World War showed that the League had failed its primary
Doc 4: Due to domestic politics, the isolationists won the day at home, and the United States chose not to join the League from the start, a great blow
Doc 5: Germany demanded it as a symbol of its restoration to equality with other great powers, and admission would enable Germany to share in the