If two country’s have been in a war for a long time and those country’s hate and dislike each other that could cause some problems if these people from both country’s lived in the same place like more war. If the country likes the place enough to try and steal the land from England then this could cause more war and huge conflicts for everyone because they have to choose a side and fight. Finally the last con of having different people in the same place is diseases, if a group of people come from a country like France and bring a new deadly disease with them the this could cause extinction of life on the new land and this can cause many problems for the country and the people in the new land. These are some of the cons of having the same people in one