1990s
June 28, 1996: After the reading of the "Aguas Blancas Manifesto" by "Captain Emiliano", guerrillas engaged police in a fire fight near the Guerrero capital of Chilpancingo, wounding several policemen and one civilian.
July 2, 1996: An EPR communiqué warns of "imminent" armed clashes with the army and police, this in response to the massive military presence in the area. Military intelligence concludes the EPR to be a genuine force, better equipped and organized than the EZLN.
July 17, 1996: An attack on an army patrol in the southwest of Guerrero wounds several soldiers and kills one civilian. Two weeks later an ambush on Navy patrolmen leaves another wounded.
August 7, 1996: EPR snipers killed one soldier and wounded several others. The EPR general command gave a press interview the same day. On August 25, the rebels claim to have killed 59 soldiers since June 28.
August 28 and 29: The largest assault so far, exceeding public and government conceptions about the group's strength. A coordinated multistate attack hits army, police, and government targets in Oaxaca, Guerrero, Puebla and the Federal District, killing 18 and wounding more than two dozen. The EPR claims 41 dead and 48 wounded. Guerrilla forces also blocked roads in Chiapas to distribute pamphlets and seized a radio station in Tabasco. President Zedillo at his State of the Union Address (Segundo Informe de Gobierno) said: "Against terrorism, all the power of the State" in a message that terrorist acts would be prosecuted.
May 1997: Two engagements left 5 soldiers and 4 guerrillas dead.[citation needed]
2000s
July 2007: EPR claimed responsibility for several attacks against Pemex oil facilities in the Bajío region and stated that the attacks would continue until two of its members were released. The government denies responsibility for the disappearance of these 2 members.
August 1, 2007: EPR also claimed responsibility for a bomb attack on a Sears store in Oaxaca, there was some damage but no injuries. On the same day the EPR also claimed responsibility for an attempted bombing of a Banamex bank branch also in Oaxaca.[1]
September 10, 2007: Pemex reported explosions due to sabotage on several pipelines located in the key energy producing state of Veracruz and further inland in Tlaxcala.[2] According to reports, there were six explosions targeting pipelines carrying natural gas, propane, and crude oil. The effects of the explosions were so severe that they caused the evacuation of over 20,000 people from the area. The explosions caused millions of dollars in damages to Pemex equipment. Additionally, it is estimated the explosions cost the Mexican economy $100 million a day as over 2,500 businesses were affected and 60% of Mexico's steel industry was shuttered.[3] On September 11, 2007, the EPR claimed responsibility for the explosions.[4]