Question: When was the Mexican American suspected drug lord which Héctor Beltrán Leyva declared war on born 

Related documents: [0]  [DOC] Edgar Valdez Villarreal (born August 11, 1973) also known as La Barbie ("The Barbie"), is a Mexican American suspected drug lord and leader of the Beltrán Leyva Cartel, a criminal group based in Sinaloa. He was arrested near Mexico City in August 2010 on charges related to large scale drug trafficking. [END] 
[1]  [DOC] La Barredora ("The Sweeper Truck") is a criminal gang based in the Mexican resort city of Acapulco, Guerrero and its surrounding territories. The criminal group came into existence during the rapid decentralization of Mexico's drug trafficking organizations and as a split-off group of the Beltrán Leyva Cartel. Originally, the Beltrán Leyva cartel operated in the city, but the group no longer has presence in Acapulco. After the Mexican military gunned down the top boss of the cartel – Arturo Beltrán Leyva – in December 2009, his brother Héctor Beltrán Leyva took control of one of the factions of the cartel and declared war on Edgar Valdez Villarreal, who had long been the right hand of Arturo. Amidst the violence, Valdez Villarreal tried to appoint a successor, but those in Acapulco broke off and formed their own criminal gang: the Independent Cartel of Acapulco. Within weeks, however, the group had splittered too, forming a new and rival group known as La Barredora. Villarreal Valdez was then captured by the Mexican Federal Police in August 2010, but the violence between the groups for the control of Acapulco continued. [END]  
Answer: August 11, 1973
August 11, 1973