It was all apart of Hitlers Blitzkrieg, which is essentially fast paced warfare. Hitler invaded them.
The Nazis invaded Czechoslovakia.
Czechoslovakia. Much of Czechoslovakia (Sudetenland) was already under the control of the Nazi's, the rest was invaded in 1939. Austria was never "invaded" but reunified in 1938.
Czechoslovakia
Austria and Czechoslovakia.
The Rhineland, Austria, Czechoslovakia, and Poland. Once Germany invaded Poland, Great Britain and France declared war on Germany starting World War Two.
Hitler invaded austria and Czechoslovakia before the onset of the 2nd world war. Because of this Britain said that if Germany invaded Poland then they would declare war on them. At the beginning of September in 1939, Germany invaded Poland and then the second world war started as Britain declared war.
Japan occupied Manchuria in 1931 and invaded China in 1937. Italy invaded Ethiopia in 1936. Germany invaded Czechoslovakia and Poland in 1939. The U.S.S.R. invaded Finland in 1939 and 1941.
The Rhineland in 1936 , the Sudetenland in 1938 , Czechoslovakia in 1939 .
SERBIA
World War 2 officially started on 1 September 1939 when German troops invaded Poland. Austria and Czechoslovakia had been annexed by Germany before that date.
When Adolf Hitler invaded Czechoslovakia, a man called Neville Chamberlain gave Adolf a part of Czechoslovakia and Neville said to Adolf to take this part of Czechoslovakia and don't ask for more. But of course after a while Adolf took the whole of Czechoslovakia. Then he went on to invade Poland.
In the Thirties, Germany occupied Austria and, later, Czechoslovakia. On September 1, 1939, Germany invaded Poland, which triggered World War II. Germany then invaded numerous other countries including most of Europe and north Africa.