My best guess is B) fighting the Napoleonic wars.
Nationalism is the belief of extreme patriotism and heavy independence. Throughout the 19th century ideals like 100% American took hold in American society. Enormous influxes in immigration fed the passion for these beliefs.
The answer is A. When Europeans first discovered the Americas, they used indigenous peoples as slaves. Eventually, the natives who weren’t immune to new diseases died. This caused the need for cheap labor, in which case came from Africa.
Answer:
The "Bush Doctrine" in foreign policy had these core ideas: that the United States could pursue this goals on its own (without need for United Nations partnerships), that preemptive strikes were allowable against countries that harbored terrorists, and that regime change for the sake of promoting democracy was a good strategy.
Applied in regard to "the war on terror," Bush's foreign policy advocated that the best defense against terrorism in the world was to use American power to spread democratic values in countries that were potential breeding grounds for terrorist activity. This sort of policy agenda was part of the "neoconservative" view of a number of President George W. Bush's advisers -- especially some who had also served in the administration of his father, President George H.W. Bush. In the wake of the 9/11 attacks, there was a desire to push American values and not be shy about doing so with the use of American military might.
