Nevertheless, I think the most effective actions for the governments are not neither warfare nor unequal acts. I think the biggest weapon for the governments to exterminate Native Americans is the disease.
Native Americans were threatened by lots of disease, and especially one type of disease called smallpox, which as Brown describes, "broke out in this country and is sweeping all before it"(Brown), and "may wiped the Mandan and Rickaree Tribes of Indian clean from the face of the earth without surprise" (Brown). "Smallpox is believed to originate as far back as 3,000 years ago in India and Egypt" (Eugene, etal), and is an infectious disease. It had a big effect on Haiti, which made a decrease of two-third population during the time period of Columbus's conquest (D' Errico). The official time period of it first introduced into the mainland of the America is around the early part of sixteenth century (D' Errico). E. Wagner Stearn and Allen E. Stearn claimed that "it not only decimated the native population for four centuries, but so demoralized the tribes through the terror it spread among them that it has been considered by many authorities to have been an important factor in their comparatively easy subjugation by the whites"(D' Errico). I think the whites did not only want to totally control the Indians, but kill them all and then evade the responsibility of doing so. A great example to support my point is the Smallpox Blankets in 1837. This event had been analyzed lots of different ways by historians, such as "a boatload of blankets shipped from a military smallpox infirmary in St. Louis"(Brown), or "a Kiowa man who refused to relinquish the shirt which had smallpox on it beside Columbia River" (Mayor, 60), but the truth is not like that. What really happened is "the smallpox was brought to the High Plains in 1837 aboard the steamboat St.
