La Raza Unida Party, or RUP, which quickly spread to other states. MAYO was later integrated into RUP and became the youth arm of the party. MAYO adopted a logo, appropriated from Aeronaves de México, an Aztec warrior inside a circle. It was later used in the Raza Unida Party logo as well. RUP candidates won elections in the 1970s. The League of United Latin American Citizens (LULAC), one of the leading Hispanic groups in Texas, was considered by MAYO to be too soft in its approach to achieving equality for Mexican Americans. Because of MAYO's tactics, which were diametrically opposed to LULAC's, it became known as the militant arm of the Chicano movement. Notes Additional information on MAYO can be located at: The archives of the San Antonio Light and the Express News. The newspapers at Trinity University and at UTSA . The Institute of Texan Cultures and the Library at the University of Texas at Austin contain papers donated by José Angel Guitiérrez. The Handbook of Texas Online. References Chicano Mexican-American culture in San Antonio Mexican-American organizations Youth organizations based in the United States Raza Unida Party