In 1915, insurgents in south Texas wrote a manifesto that was circulated in the town of San Diego and all across South Texas. The manifesto "Plan de San Diego" called on Mexicans, American Indians, Blacks, Germans, and Japanese to liberate south Texas and kill their racist white oppressors. Numerous cross-border raids, murders, and sabotage took place. Some Tejanos strongly repudiated the Plan. According to Benjamin H. Johnson, middle class Mexicans born in the US desire to affirm their United States loyalty resulted in their founding the League of United Latin American Citizens (LULAC). It was headed by professionals, business leaders, and progressives, and it became the central Tejano organization promoting civic pride and civil rights.