Though the union of Austria and Germany was forbidden by the Treaty of Saint-Germain in 1919, the Nazis annexed Austria in 1938. The German term Anschluss—”annexation”—is most frequently used in reference to this event. When the Nazis entered Austria to enforce the Anschluss, they encountered no military opposition and quickly took control. The US, USSR, and UK signed a declaration proclaiming the Anschluss null and void in 1943, yet Austria did not regain its sovereignty until what year? Discuss