The reason the U.S. shifted foreign aid from Europe to the middle east, Asia and Africa is because the U.S. interest changed.
Explanation:
First of all, even though you didn't write the reasons it all relays to the geopolitical interests of the U.S. After the WWII the next big conflict was the cold war sustained against the soviet Union but after the soviet revolutions and the separation of the soviet union. Tensions lowered. However there were still conflicts in the world and he U.S. in it's rol of international protector of the weak identified the middle east, africa, and asia were zones that required it's support to balance rights.
An individual would want to use a bank because of some reasons. One is that it is a safe place to keep their money. Another reason is that there is an interest when you put your money in a bank. Which means your money will continue to grow.
They used their new food to increase their population and then spread their knowledge to all of Africa. More food meant bigger populations, which led to cities.
