All the first civs were located near a river. Rivers were essential to development because soil was richer = more crops
Answer:
The U.S.'s foreign policy after WWI was to become isolationists. They said they would not supply any country with weapons.
They enforce rules that control conduct within a population
The first battle of Britain was the major campaign fought by the entire air forces and was also the largest and most sustained battle .the battle of Britain was marked as the first defeat of hitler's militry.