The Mormons migrate to the area between the Rocky Mountains and the Great
Salt Lake to avoid war with Native Americans. The answer is letter A. At that
time, Joseph Smith established several communities. However, the Saints
(Mormons) have to be driven out due to conflicts with other settlers. They were
forced to abandon the place.
"Bleeding Kansas", this was a fight between North and South over Kansas and Nebraska to be a free or slave state
The Progressive Era is considered from 1890 to 1920. The major role of the United States in global affairs during this period of time was its involvement in the war.
The military affairs of that time included the war with Spain, the war to conquer the Philippines and the entry into the First World War.
Until the beginning of the 20th. century, political affairs in the US used to follow Washington and Madison, guidelines of neutrality and nonintervention.
But in those times, European nations turned into imperialism, establishing colonies in different parts of the planet. Time passed by when Theodore Roosevelt, influenced by <em>The Influence of Sea Power Upon History</em>(written by Admiral Alfred Thayer in 1890), understood the potential of investing money in other countries, securing the interest of the U.S.
In the 1910-1920's, the United States government followed an intervention policy in the Caribbean and Central America, the Philippines and even President Wilson supported the Mexican revolution.
President Kennedy, in those words from his inaugural speech in 1961, wanted to urge Americans toward public service and global service. Kennedy was instrumental in establishing the Peace Corps, which was put into place not long after his inauguration (already in March, 1961). The Peace Corps enlisted Americans as volunteers to give their time to serving underdeveloped nations in the world.
WWI was caused by many things, among them was the assassination of Franz Ferdinand leading to the Austria-Hungary empire declaring war on Serbia which dragged most of Europe into the war due to alliances. The U.S. entered the war due to Germanys war tactics and the Zimmermann note.