There are a plethora of factors that have played a role in influencing world politics in the 20th century. There are the political ideologies, each with their own agenda, conflicting or similar, such as Communism, Fascism, Nationalism, Capitalism and Socialism. There are the various worldwide treaties and agreements, such as the Treaty of Versailles, the League of Nations and the United Nations. Accompanying these are economic agreements, which have an ever-increasing role in world politics, like the General Agreement on Tariffs and Trade (GATT), the World Trade Organisation (WTO), the World Bank, the International Monetary Fund (IMF), plus regional trade agreements and customs unions such as the North American Free Trade Area (NAFTA), the
|