The Romanian occupation of Pokuttia (Romanian: Pocuția) took place in early 1919, when, as a result of alliances concluded between Romania and Poland, the former entered the southeastern corner of the former Austro-Hungarian ruled province of Galicia. During the interwar period, Romania was Poland's main ally in Eastern Europe (see Polish–Romanian alliance). Both nations were bound by several treaties and history of this alliance dates back to the end of World War I and the Treaty of Versailles. However, to actively cooperate, governments in Bucharest and Warsaw emphasized the necessity of a shared border. Discussions about the border started in Paris some time at the beginning of 1919 and continued during the following months.