Other forms: braceros
From the 1940s to the 1960s, temporary Mexican workers in the United States were called braceros. An official agreement between the countries included a minimum wage and workplace protections for the braceros.
In Spanish, bracero means "one who works with his arms." These laborers filled an acute need for able-bodied farm workers in the U.S. during and after World War II. 1942's Mexican Farm Labor Agreement guaranteed room and board for braceros who moved temporarily to the U.S., as well as minimum pay of 30 cents per hour. The program was renewed several times but eventually became controversial as American workers came to view it as a threat to their employment.