Who was the prominent leader of the Alianza?

Reies Lopez Tijerina was a significant figure in the Alianza Federal de Pueblos Libres, an organization that fought for the rights of land grants and the cultural identity of New Mexico's Hispanic population. Tijerina is recognized for his advocacy of land restitution for the descendants of those who had been granted land through Spanish and Mexican laws, which were often not honored by the U.S. government. His leadership in the Alianza aimed to address social and economic injustices faced by Hispanic communities, making strides in civil rights throughout New Mexico. Tijerina's activism and charismatic leadership helped bring national attention to the issues affecting the state’s Hispanic population during the 1960s and 1970s, marking him as a prominent leader in this movement.