helped broaden the focus to include their rights. The Immigration and Nationality Act of 1965 set strict quotas on the number of persons who could legally enter the U.S. from Latin American nations, and most new Mexican migration to the U.S. in the 1960s was temporary and short-term. Seasonal migration between the United States and Mexico became illegal in 1965. Nevertheless, the numbers involved with seasonal agriculture kept growing, often forced to resort to undocumented migration. They made money in the U.S. but returned to the villages to spend it, tend to the family business, and participate in extended kinship rituals such as baptisms, weddings, and funerals. The most significant union struggle involving Mexican-Americans was the United Farm Workers' long strike and boycott aimed at grape growers in the San Joaquin and Coachella Valleys in the late 1960s, followed by campaigns to organize lettuce workers in California and Arizona, farm workers in Texas, and orange grove workers in Florida. The most prominent civil rights organization in the Mexican-American community is the Mexican American Legal Defense and Educational Fund (MALDEF), founded in 1968. Although modeled after the NAACP Legal Defense and Educational Fund, MALDEF has also taken on many of the functions of other organizations, including political advocacy and training of local leaders. Instead, when the movement dealt with practical problems most activists focused on the most immediate issues confronting Mexican-Americans: unequal educational and employment opportunities, political disenfranchisement, and police brutality. In the heady days of the late 1960s, when the student movement was active around the globe, the Chicano movement brought about more or less spontaneous actions, such as the mass walkouts by high school students in Denver and East Los Angeles in 1968. The movement was particularly strong at the college level, where activists formed MEChA, el Movimiento Estudiantil Chicano de Aztlán, which promoted Chicano Studies programs and a generalized nationalist agenda. The student movement produced a generation of future political leaders, including Richard Alatorre and Cruz Bustamante in California. 1970s Some women who worked within the Chicano movement felt that participants were more worried about other issues, such as immigration than solving problems that affected women. This led Chicanas to form the Comisión Femenil Mexicana Nacional in 1970. The National Chicano Moratorium March was also held in Los Angeles in 1970. La Raza Unida Party campaigns in the early 1970s had the practical effect of defeating Mexican-American Democratic