What is the result/significance of Germany's annexing Austria?

The German expansion into Austria helps to set the stage
for future designs of Hitler and the Nazi party.  The pattern that would be visited
repeatedly was first established in the overtaking of Austria.  On one hand, Hitler laid
out a type of "historical" case as to why expansion was warranted.  This perception of
history was distorted, but since no other versions were being offered (or those who were
offering it were being silenced by Hitler), there became a historical basis for the land
acquisition.  Some slight attempts at diplomacy was pursued, consisting of Hitler
meeting with representatives and essentially bullying his way to his own ends, and then
a military movement complete with social modes of control that emphasize the Nazi notion
of the good being absolute.  All of these were on display with the acquisition of
Austria.  If you believe MGM musicals, the Von Trapp family had much to say, or sing,
about this, as well.