

![]()
The reason I post this is you can see the topography of the Sudetenland on this map. As you can see it was a very mountainous frontier and additionally the Czechs had many border fortifications in these areas that bordered Germany. Not to mention all the coal, and other resources in the area.
The Czech's could have put up stiff resistence on this frontier but it was clear to them that they couldn't do it on their own. The loss of the Sudetenland took the teeth out of any future defence of Czechoslovakia.