Because "<span>the newly independent former colonies were beset with a wide array of foreign and domestic problems."</span>
Known as the “Moses of her people,” Harriet Tubman was enslaved, escaped, and helped others gain their freedom as a “conductor" of the Underground Railroad. Tubman also served as a scout, spy, guerrilla soldier, and nurse for the Union Army during the Civil War.
Their alliance disturbed the ruling class, who responded by hardening the racial caste of slavery.[1] [2] While the farmers did not succeed in their goal of driving Native Americans from Virginia, the rebellion did result in Berkeley being recalled to England.
During the Cold War there was a concern in the United States over the expansion of communism. This fear of communism manifested itself in the domino theory an idea which governed much of us foreign policy starting in the 1950s. The domino theory was essentially the idea that if one nation fell to communism its neighboring counties would as well and this process would repeat itself almost resembling a row of dominos falling (hence the name). Because of this theory many political leaders in the us feared that if former French colonies like Vietnam fell to communism than their neighboring counties would as well including Laos, Cambodia, etc.
