Braceros: Braceros were Mexican contract workers who were legally allowed to work in the United States during World War II through a government program aimed at addressing labor shortages.
Immigration: Immigration refers to the act of individuals moving permanently from one country to another for various reasons, such as seeking better economic opportunities or escaping political instability.
Labor Shortages: Labor shortages occur when there is a lack of available workers in certain industries or regions, which can lead to recruitment efforts or migration of workers from other areas.