Because the navy and army help protect the country so without them america would be attacked
Some of their problems was lack of nation-building experience, poor infrastructure, and massive amounts of damage incurred during their revolutions for independence. But for most of them that were explored they had many problems until nowadays.
The immediate result of trench warfare was that combatants on both sides were largely shielded from small arms and artillery fire, which prolonged the fighting and the war.
The answer is 2/3rds of the employees
As it was the Cold War which meant that neither side was willing to attack the other as both sides had atomic weapons aimed at the other. This would lead to a nuclear war
