1) Invasion of Austria 2) March 1938 event 
The Anschluss (De-Anschluss.ogg; spelled Anschluß at the time of the event, and until the German orthography reform of 1996; German for `connection` or union, political annexation), also known as the Anschluss Österreichs (pronunciation), was the annexation of Austria into Nazi Germany in March 1938. This was in contrast with the Anschluss mov.....
political union of Austria with Germany, achieved through annexation by Adolf Hitler in 1938. Mooted in 1919 by Austria, Anschluss with Germany ... [10 related articles]
The annexation of Austria with Germany, accomplished by the German chancellor Adolf Hitler on 12 March 1938. ...
German annexation of Austria, Mar 1938
The union of Austria with Germany under Hitler in 1938.
The annexation of Austria to Germany.
German annexation of Austria in March 1938. 
union, esp. the political union of Austria with Germany in 1938.