Once the center of power for the large Austro-Hungarian Empire, Austria was reduced to a small republic after its defeat in World War I. Following annexation by Nazi Germany in 1938 and subsequent occupation by the victorious Allies in 1945, Austria's status remained unclear for a decade. A State Treaty signed in 1955 ended the occupation, recognized Austria's independence, and forbade unification with Germany. A constitutional law that same year declared the country's "perpetual neutrality" as a condition for Soviet military withdrawal. Following the Soviet Union's collapse in 1991 and Austria's entry into the European Union in 1995, some Austrians have called into question this neutrality. A prosperous, democratic country, Austria entered the Economic and Monetary Union in 1999. All the coins in this set are in Brilliant Uncirculated condition as released by the Mint. These sets make beautiful and educational gifts for young numismatists and are invaluable in putting the final touches on exceptional school projects.