After the Austro-Hungarian army disintegrated in November 1918, Czechoslovak troops occupied the area, later acknowledged internationally by the Treaty of Trianon. Between 1938 and 1945 Topoľnica once more  became part of Miklós Horthy's Hungary through the First Vienna Award.
Following the collapse of the Austro-Hungarian army in November 1918, Czechoslovak troops took possession of the area, which was subsequently recognized internationally by the Treaty of Trianon. From 1938 to 1945, Topoľnica once again became part of Hungary under Miklós Horthy's rule as per the First Vienna Award.