Treaty of Trianon
Hungary lost World War I and so the treaty made two thirds of its land and one third of its population go to neighbouring countries like Romania, Czechoslovakia and Yugoslavia. The partition of Hungary irredentism since many of the lost lands wanted to stay in Hungary. Also, the treaty forced Hungary to pay reparations and to limit the size of the its army.
- Craig, G.A. (1966). Europe since 1914. Holt, Rinehart and Winston, New York.
- Grenville, J.A.S. (1974). The Major International Treaties 1914-1973. A history and guides with texts. Methnen London.
- Lichtheim, G. (1974). Europe in the Twentieth Century. Praeger, New York.
- Text of the Treaty
- Richard C. Frucht, Eastern Europe: An Introduction to the People, Lands, and Culture pp. 359-360 online