Well, the moment the US intervened with the affairs of the World was the moment that the US could not go back to an isolationist policy. The US simply cannot afford to stop playing a role in world affairs, due to the fact that the US is a capitalist society and that the US has a lot of exports/imports. Unless the US can reach a level of capacity where it is self sufficient, which is currently impossible to do, the US must participate in the affairs of the World in order to survive.
Answer:
On the other hand, the Americans had many intangible advantages.
The British fought a war far from home. Military orders, troops, and supplies sometimes took months to reach their destinations. The British had an extremely difficult objective. They had to persuade the Americans to give up their claims of independence. As long as the war continued, the colonists' claim continued to gain validity. The geographic vastness of the colonies proved a hindrance to the British effort. Despite occupying every major city, the British remained as at a disadvantage.
Americans had a grand cause: fighting for their rights, their independence and their liberty. This cause is much more just than waging a war to deny independence. American military and political leaders were inexperienced, but proved surprisingly competent.
The war was expensive and the British population debated its necessity. In Parliament, there were many American sympathizers. Finally, the alliance with the French gave Americans courage and a tangible threat that tipped the scales in America's favor.
SOURCE: http://www.ushistory.org/us/11a.asp
Navy, trade (second could be multiple things)
The answer is D to ensure future trade
D) Niccolo Machiavelli and Baldassare Castiglione.
I just took the test.
Hope it helps