I really hope this helps if not use the comments please
end Vietnam war, "GAIN" racial equality
The Molotov-Ribbentrop Non-Aggression pact between the Nazi Germany and Soviet Union serves as a pact that divide the eastern part of Europe between Nazi and the Soviet Union sphere of influence and control. One example of this is the invasion of the two belligerents to Poland and divide Poland between the two powers. Also it improves the diplomatic stance between the two countries with two different ideologies. But it will soon be broken by the Germans when they invade Soviet Union.
The correct answer to this open question is the following.
You did not attach the map. Without that information, we do not know what you are referring to.
What we can do is to comment on the following general terms.
The most direct factor that contributed to the spread of settlement depicted on the map in ancient civilizations, if that is what you are referring to, was conquering. Empires started to grow, gain power, and were ambitious and decided to battle other regions and towns to conquer them and gain those territories to form empires.
For instance, there is the example of Sumeria. They established powerful city-states such as Lagash, Nippur, Eridu, Kish, or Ur, and they first traded, then fought to increase their power and dominion, and spread their territories.
