<span>The domino theory, which governed much of U.S. foreign policy beginning in the early 1950s, held that a communist victory in one nation would quickly lead to a chain reaction of communist takeovers in neighboring states. In Southeast Asia, the United States government used the domino theory to justify its support of a non-communist regime in South Vietnam against the communist government of North Vietnam, and ultimately its increasing involvement in the long-running Vietnam War (1954-75). In fact, the American failure to prevent a communist victory in Vietnam had much less of a global impact than had been assumed by the domino theory. Though communist regimes did arise in Laos and Cambodia after 1975, communism failed to spread throughout the rest of Southeast Asia.
I hope this was of help.
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Why was who so excited to move to a different place other than Los Angeles county...
Americans tried to civilize the Native Americans through the Washington Administration who embraced a program to civilize native people, transforming Indians from tribal peoples into individuals who could be easily adopt the ways of another culture into American Society. The program promotes commercial agriculture, Christianity, an alteration in the gender-based divisions of labor among Indians and most importantly private ownership of land.
A 2019 paper from Tel Aviv University identified economic competition, cultural competition, racial attitudes, and fear of crime as some of the most significant factors in opposition to immigration.
Because since these allows for a "division and labor", the answer would be "enough food" and "large population of non-farmers".
hope it helps jijiji