It would be that "D. The Cuban Missile Crisis occurred" that did not <span>happen during Richard Nixon's presidency, since in fact this happened during the term of JFK. </span>
Serfs, also known as peasants, were the lowest class of citizen in feudal societies. They were allowed to live on land own by Lords in return for labor, which was practically slavery.
Schenck v. United States was a Supreme Court case about the enforcement of the Espionage Act of 1917. I believe the case went straight to the Supreme Court and resulted in the Court's ruling that the criminal conviction of Schenck was in fact constitutional.
1) PATRIOTISM
Americans fought for their freedom so their motivation was unstoppable.
2) WAR WAS ON OUR TERRITORY
Americans knew the layout of their land.
3) FRENCH
The French helped the Americans with supplies and weapons.