has the league participated in any war?
Yes, Spanish Civil War
League of Nations
On 17 July 1936, the Spanish Army launched a coup d'état, leading to a prolonged armed conflict between Spanish Republicans (the elected leftist national government) and the Nationalists (conservative, anti-communist rebels who included most officers of the Spanish Army). 
who is the founder of the league of nations Peace activists William Randal Cremer and Frédéric Passy what were the initial proposals? The first schemes for an international organisation to prevent future wars began to gain considerable public support, particularly in Great Britain and the United States. can you please name some of the members? UNANSWERABLE when was it established? 10 January 1920 what were its origins? The IPU was founded with an international scope, with a third of the members of parliaments (in the 24 countries that had parliaments) serving as members of the IPU by 1914. Its foundational aims were to encourage governments to solve international disputes by peaceful means. what is ipu? Inter-Parliamentary Union who are its members? UNANSWERABLE how it is related to the league? The IPU has played a leading role in the development of international law and institutions, including the Permanent Court of Arbitration, the League of Nations, and the United Nations. where was its last conference held? In 1919 and 1920 which powers does it have? The territories were governed by mandatory powers, such as the United Kingdom in the case of the Mandate of Palestine, and the Union of South Africa in the case of South-West Africa, until the territories were deemed capable of self-government.
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League of Nations [SEP] Spanish Civil War
On 17 July 1936, the Spanish Army launched a coup d'état, leading to a prolonged armed conflict between Spanish Republicans (the elected leftist national government) and the Nationalists (conservative, anti-communist rebels who included most officers of the Spanish Army). Julio Álvarez del Vayo, the Spanish Minister of Foreign Affairs, appealed to the League in September 1936 for arms to defend Spain's territorial integrity and political independence. The League members would not intervene in the Spanish Civil War nor prevent foreign intervention in the conflict. Adolf Hitler and Mussolini continued to aid General Francisco Franco's Nationalists, while the Soviet Union helped the Spanish Republic.