Answer:
The reason the U.S. shifted foreign aid from Europe to the middle east, Asia and Africa is because the U.S. interest changed.
Step-by-step 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.