Which countries gained territory from Germany after World War 1?

After World War I, several countries gained territory from Germany as a result of the Treaty of Versailles in 1919. France regained Alsace-Lorraine, while Poland was re-established and received parts of Prussia, including the Polish Corridor. Additionally, Belgium acquired a small section of territory, and Denmark gained Northern Schleswig. The loss of these territories significantly altered Germany's borders and contributed to national grievances that would later influence World War II.