The Treaty of Trianon, signed in 1920, symbolized significant territorial and political changes for Hungary and its neighbors. Following World War I, the treaty drastically reduced Hungary's territories, losing about two-thirds of its land and population to countries like Romania, Czechoslovakia, and Yugoslavia. This loss fostered a sense of national humiliation and resentment, contributing to revanchist sentiments and affecting Hungary's interwar politics. The treaty's implications shaped Hungary's national identity and influenced relations with its neighbors, establishing long-lasting tensions and disputes over borders that have echoed into modern politics in Central Europe.