 However this strategy, allegedly proposed by General Óscar Naranjo, Peña's security advisor from Colombia, crumbled when autodefensas started to have internal organization struggles and disagreements with the government, being finally infiltrated by criminal elements, that deprived the government forces the ability to distinguish between armed-civilian convoys and drug-cartel convoys, forcing Peña's administration to distance from them.Peña's handling of the 2014 Iguala mass kidnapping and the 2015 escape of drug lord "El Chapo" Guzmán from the Altiplano maximum security prison sparked international criticism.A great part of Peña Nieto's strategy consisted in making the Mexican Interior Ministry solely responsible for public security and the creation of a national military level police force called the National Gendarmerie.