<span> The Native American food sources were greatly affected by the environment. If the environment did not have enough plants, animals or water, the Native Americans would have to move to a new place to hunt and gather their resources. The environment also affected the weather such as drought and winters that destroyed the plants making the gathering hard for them. <span> </span></span>
Initially argued for "massive retaliation" toward enemies of the US. He argued for military buildup and involvement in the Vietnam War. McNamara began to question US involvement and began a study on military in Vietnam. This study is now referred to as the Pentagon Papers.
Polk campaigned under the popular slogan "54-40 or fight," a contention that the southern boundary of Russian America was the northern boundary of Oregon
