Changes

===Up to 1939===

===Up to 1939===

[[File:Galicia.jpg|right|300px|thumb|The former Austrian Galicia province.]]

[[File:Galicia.jpg|right|300px|thumb|The former Austrian Galicia province.]]

A powerful underground Ukrainian nationalist movement rose in Poland in the 1920s and 1930s, led by the Ukrainian Military Organization and the [[Organization of Ukrainian Nationalists]] (OUN). The movement attracted a militant following among students and harassed the Polish authorities. Legal Ukrainian parties, the Ukrainian Catholic Church, an active press, and a business sector also flourished in Poland. Economic conditions improved in the 1920s, but the region suffered from the [[Great Depression]] in the 1930s. In 1939, as a result of the [[Molotov-Ribbentrop Pact]] when Nazi Germany and the Soviet Union invaded Poland, Galicia and Volhynia were annexed to [[Soviet Ukraine]].  

A powerful underground Ukrainian nationalist movement rose in Poland in the 1920s and 1930s, led by the Ukrainian Military Organization and the [[Organization of Ukrainian Nationalists]] (OUN). The movement attracted a militant following among students and harassed the Polish authorities. Legal Ukrainian parties, the Ukrainian Catholic Church, an active press, and a business sector also flourished in Poland. Economic conditions improved in the 1920s, but the region suffered from the [[Great Depression]] in the 1930s. In 1939, as a result of the [[Molotov-Ribbentrop Pact]] when Nazi Germany and the Soviet Union invaded Poland, Galicia and Volhynia were annexed to [[Soviet Ukraine]].  

===World War II===

===World War II===

====Diplomacy====

====Diplomacy====

{{See also|Western betrayal}}

{{See also|Western betrayal}}