it lead to disputes over who had the right to trade where and what and with who
Oil, Natural gas production, timber, agriculture, and ranching.
B- The Manhattan project was a top secret project carried out by the U.S government to create an atomic bomb.
If a nation is very small they could only accept a certain amount of people. They are small so they only have so much food, space, etc. to provide for its citizens. Though if the nation was large such as the US or Canada they can be a little less strict and allow more people in.
