When one geographically displays the division and occupation of Germany one usually has a mental map something like this:
|Planning map of German occupation zones. Click to enlarge. From my personal map library.|
The map also shows how the Allies considered Hitler's changes to Germany's borders illegitimate. France and the United Kingdom did not object at the time to Hitler's annexation with Austria, allowed the Sudetenland to be adsorbed, and stood by while Germany annexed most of Czechoslovakia. However, the map shows international boundaries from 1937, right before Hitler began his aggressive territorial expansion but after The Territory of the Saar Basin legitimately voted freely under League of Nations' guidelines to rejoin Germany in 1935.
The second map shows the reasoning behind the Allies behavior. The Soviets got a much larger share of Germany but decided to give it to their future puppets in Poland. The map also shows that Allies recognized their failure to curb Hitler's aggression during the appeasement era before World War II.