The Nazi Germans.
Yes it was in 1938.
The Sudetenland
Legends of the fall
He agrees to give Hitler the Sudetenland at an attempt to avoid war
It was one of the regions taken over by Germany leading to WW2.
The border between Rhineland and Sudetenland was around the area in western Czechoslovakia that bordered Germany, particularly along the Sudeten Mountains. This territory was a major point of contention leading up to World War II, with Germany seeking to annex the Sudetenland from Czechoslovakia.
from 1945 until the 1980s, the US.since the 1980s, the USSR and now Russia.
Hitler claimed that Sudetenland rightfully belonged to Germany because there were a lot of German people living there. Sudetenland was once a part of Austria; after World War I, it became a part of the new country of Czechoslovakia (which eventually split into the Czech Republic and Slovakia in 1993).
Austria Hungary did not become one nation after World War 1.
Sudetenland was giving to Germany whiles Austria was conquered by Germany
The Rhineland in 1936 , the Sudetenland in 1938 , Czechoslovakia in 1939 .