The United States took a larger role in world affairs through the projection of its military and economic power. It did so in order to become a more important country. By the late 1800s, the United States was big enough and strong enough to want to play a greater role in international affairs.
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Mormonism is the predominant religious tradition of the Latter Day Saint Movement. It was founded by Joseph Smith in Western new York in the 1820s. It distinguished itself from traditional Protestantism. A prophet leader Joseph Smith was killed in 1844. After that most Mormons followed Brigham Young on his westward journey to the Utah Territory.
Mormon fundamentalism maintained practices and doctrines such as poligamy ( plural marriage ), or the United Order, form of egalitarian communalism. In the 1890 Manifesto the president of the Church of Jesus Christ of Latter Day Saints announced the official end of plural marriage. This was the reason why several groups of Mormons broke with this church forming several denominations of Mormon fundamentalism.
Some sources have claimed that there are about 6.5 million Mormons in the United States today.
You didn't provide a list of choices, but I'll provide a key example: The US intervention in Korea. In Korea, when communist forces from the North invaded the South in 1950, the United States intervened (with United Nations backing), battled to keep South Korea free and democratic, and were able to do so. The Soviet Union did not play an active, open role in that war, but did covertly supply <span>material services to the North Korean side, as well as Soviet pilots and aircraft. Keeping communism from spreading in Korea was a way the US was practicing its policy of containment over against Soviet communist influence.</span>
Trade was increased making it appealing for immigrants to come
