The Popular Revolutionary Army (Spanish: Ejército Popular Revolucionario, EPR) is a far-left guerrilla movement in Mexico. Though it operates mainly in the state of Guerrero, it has conducted operations in other southern Mexican states, including Oaxaca, Chiapas, Guanajuato, Tlaxcala and Veracruz.
The EPR announced its existence on June 28, 1996, at the commemoration of the Aguas Blancas massacre one year earlier. Dozens of rebels, carrying AK-47 and AR-15 rifles, declared war against the Mexican government and read aloud the "Aguas Blancas Manifesto", as well as firing 17 shots into the air to pay respect to the 17 who died in the massacre.