The status of the German areas in Bohemia, Moravia, and Austrian Silesia was finally settled by the 1919 peace treaties of Versailles and Saint-Germain-en-Laye, which declared that the areas belong to solely to Czechoslovakia.
According to the 1919 peace treaties signed at Versailles and Saint-Germain-en-Laye, the German territories in Bohemia, Moravia, and Austrian Silesia were officially assigned to Czechoslovakia, with no other claim recognized.