[[File:Hungary, Treaty of Trianon.png|thumb|225px|Hungary before and after the [[Treaty of Trianon]]]]
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[[File:Hungary 1941-44 Administrative Map.png|thumb|225px|Hungary regained some of its lost territories under Horthy]]
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After the conclusion of the First World War, Hungary was in turmoil, having lost over two-thirds of its territory and undergoing internal instability. The country briefly was controlled by a communist government. Conservatives, led by [[Miklós Horthy]] retook control over the country. For practical reasons, Horthy aligned Hungary with [[Nazi Germany]], something which allowed the country to regain some of its lands.