Answer:
In WWI, America tried to sought a way to stay neutral but the bombing of Pearl Harbor forced then into the war.
The public feels, as never before, that it knows the President or a presidential candidate on a personal basis. ... The standard for a constitutional Presidency has remained the same. ... Perhaps the first and foremost element of a constitutional Presidency is eligibility.
I think the answer is the judicial branch, they determine if the laws are constitutional or not
The Peloponnesian War weakened the Greek city-states and it divided them. This gave Phillip 11 of Macedon the opportunity to move in and conquer them in their weakened, non-united condition and they were never to get their original strength back again. The Peloponnesian war was very debilitating to the Greek city-states.