On January 6, 1915, nine men of Mexican descent met in San Diego, seat of Duval county, and signed El Plan de San Diego, a manifesto calling for political insurrection in response to contemporary social and political events. The proposed rebellion also had international implications, significantly impacting the Mexican revolution and American preparedness for World War I. El Plan de San Diego called for Mexican Americans, African Americans, Native Americans and Japanese Americans to rise in arms throughout the American Southwest on February 20, 1915, using force to separate Texas, New Mexico, Arizona, Colorado, and California from the U.S. and establish a new nation. Deodoro Guerra, an Hidalgo County merchant, became aware of the plan on January 24, when Basilio Ramos Jr., a signer of the document, attempted to recruit Guerra to join the uprising. Guerra sent word to Hidalgo County law enforcement officials, who arrested Ramos. Newspaper accounts of the proposed revolt appeared throughout the nation, causing panic and fear to spread. Though nothing happened on February 20, near-daily raids occurred in July in the Lower Rio Grande Valley. Many citizens and law enforcement officials resorted to extrajudicial means to terrorize and murder hundreds, and possibly thousands, of Mexicans and Mexican Americans. At the request of Governor James Ferguson, President Woodrow Wilson began sending soldiers to the U.S.-Mexico border. Tens of thousands of U.S. Army and National Guard troops deployed. Historians attribute the turmoil from El Plan de San Diego and its period in history to political upheaval and maneuvers from leaders of the Mexican revolution, efforts of Axis powers to keep the U.S. out of WWI, and longstanding ethnic and cultural conflicts between original south Texas settlers of Mexican descent and newcomers. (2015)