Missiles. Soviets developed ICBM could reach U.S. and carried nuclear weapons, space, CIA used U-2 aircraft that flew so high they couldn't be shot down but was shot down in 1960.
It rapidly increased due to an increase in immigration
The direct causes of the American revolution include the following:
1. Colonists rights were restricted.
2. Colonists were not represented in parliament.
3. Colonists did not want England ruling from far away.
4. Colonists were frustrated with high taxation.
All these factors led to the war between the American colonists and the British. Great Britain put in place a lot of policies which did not favored the American colonists, this include the payment of tax which the American colonists violently rejected.
Answer:
The Department of Interior
Explanation: