If you're asking in general then, the area has to have people who share common customs, belief and language.However, this might not entirely be true as there are some countries which have vast diversity and still portray nationalism.
Hope this helps!!
Ghana was a kingdom in Africa that lasted from the 6th to the 13th century CE, located south of the Sahara desert and northwest of the Niger River in modern day Mauritania and Mali.
Munich Conference 1938. Actually a preoccupied and unprepared (for war) Soviet Union wanted to broker a Peace Accord. France and Germany along with the Soviet Union attended the meeting. Britain and France, also unprepared for war, capitulated to Nazi Germany's desire allowing Czechoslovakia to be partitioned. The Nazis would be (the only regime) successful in this conference. Basically, it was the lack of preparedness of the Soviet Union, France and Britain which caused the conference to be unsuccessful from the allies' perspective
