Answer:
He refused to do anything.
Explanation:
Franklin Pierce was the United States President between 1853 to 1857. His administration was marred by a lot of controversies particularly the event known as Bleeding Kansas.
In 1855 during the election to determine if Kansas were to be added as a Slave state or not, the process was marred by fraud and eventually led to violence.
However, instead of doing anything about the violence, "Pierce refused to do anything." He chose to let the politics of Kansas be resolved by the residents, even though it was believed to lend toward the pro-slavery side.
The Native Americans didn’t have as strong weapons or armor, they also didn’t have immunity to the diseases that the Europeans brought over as carriers.
In short:
Their simple weapons couldn’t pierce metal armor and then their population was drastically decreased through means of accidental biological warfare.
The correct answer is Appeasement
The appeasement policy was a measure taken by European economic powers (England and France). It consisted of not stopping the advance and popularity of Nazifascisms, with the intention that Nazi Germany and fascist Italy would bar or even fight communism in the USSR. Since these countries, Germany and Italy were opposed to the communist idea.
This is the biggest and best explanation given as a reason why the economic powers have done nothing to stop Nazism and fascism.
The US involvement in Vietnam was a one to forget by the US, as it brought them lot of shame and shaken reputation among the international community. The US thought that Vietnam would be easy to take over, but they very wrong. The elections in the country were canceled, which led to a situation where there wasn't official governing body, creating chaos. The Buddhist practices were going in the advantage of the US enemy, as the Buddhists were not very fond of the Western world and the imposition of its culture and religion it tried to do. The Viet Cong, a strong and very well organized paramilitary organization, was against the US, and it was an organization that had people all over the country, knew the terrain very well, and its members were very well equipped and motivated. All of these factors led to a defeat of the US army in Vietnam, thus losing the Vietnam War.