The Treaty of Trianon, signed in 1920, had significant repercussions for Hungary and the post-World War I landscape. As a result of the treaty, Hungary lost around two-thirds of its territory and a substantial portion of its population to neighboring countries, such as Romania, Czechoslovakia, and Yugoslavia. This territorial loss not only diminished Hungary’s geopolitical influence but also led to deep economic and social challenges. The treaty fostered a sense of national grievance and irredentism among Hungarians, contributing to political instability in the region and setting the stage for future conflicts in Central Europe, including World War II.