survives today. Adolf Hitler cited that all "Germans" – such as him and the others from Austria, etc. – should be united with Germany. Hungary By comparison, Hungary had been a nation and a state for over 900 years. Hungary, however, was severely disrupted by the loss of 72% of its territory, 64% of its population and most of its natural resources. The Hungarian Democratic Republic was short-lived and was temporarily replaced by the communist Hungarian Soviet Republic. Romanian troops ousted Béla Kun and his communist government during the Hungarian–Romanian War of 1919. In the summer of 1919, a Habsburg, Archduke Joseph August, became regent, but was forced to stand down after only two weeks when it became apparent the Allies would not recognise him. Finally, in March 1920, royal powers were entrusted to a regent, Miklós Horthy, who had been the last commanding admiral of the Austro-Hungarian Navy and had helped organize the counter-revolutionary forces. It was this government that signed the Treaty of Trianon under protest on 4 June 1920 at the Grand Trianon Palace in Versailles, France. The restored Kingdom of Hungary lost roughly 72% of the pre-war territory of the Kingdom of Hungary. Habsburg banishment Austria had passed the "Habsburg Law," which both dethroned the Habsburgs and banished all Habsburgs from Austrian territory. While Karl was banned from ever returning to Austria again, other Habsburgs could return if they gave up all claims to the defunct throne. In March and again in October 1921, ill-prepared attempts by Karl to regain the throne in Budapest collapsed. The initially wavering Horthy, after receiving threats of intervention from the Allied Powers and the Little Entente, refused his cooperation. Soon afterward, the Hungarian government nullified the Pragmatic Sanction, effectively dethroning the Habsburgs. Subsequently, the British took custody of Karl and removed him and his family to the Portuguese island of Madeira, where he died the following year. Territorial legacy Immediately after World War I The following states were formed, re-established or expanded at the dissolution of the former Austro–Hungarian monarchy: German Austria (which became the First Austrian Republic) First Hungarian Republic which became the Hungarian Soviet Republic, subsequently briefly restored and replaced by the Hungarian Republic, ultimately transformed into the Kingdom of Hungary First Czechoslovak Republic ("Czechoslovakia" from 1920 to 1938) Second Polish Republic, contested by the short-lived proto-states of Tarnobrzeg Republic and Polish Soviet Socialist Republic State of Slovenes,