Recent captures or killings of major alleged Mexican drug cartel leaders:
__ Feb. 28, 2015: Mexican marines capture Abigael Gonzalez Valencia, known as "El Cuini," in Puerto Vallarta. He was allegedly the financial operator for the New Generation Cartel of Jalisco, a former Sinaloa ally that has grown rapidly into one of Mexico's most powerful drug-trafficking organizations.
— Feb. 27, 2015: Federal police capture Servando "La Tuta" Gomez, one of world's most-wanted alleged drug lords who once terrorized Michoacan state as leader of Knights Templar cartel.
— Oct. 9, 2014: Officials announce arrest of Vicente Carrillo Fuentes, purported leader of Juarez cartel.
— Oct. 1, 2014: Mexico announces capture of Hector Beltran Leyva, alias "The H" and "The Engineer," who allegedly became head of Beltran Leyva cartel after his brother Arturo died in a 2009 gun battle with troops.
— March 9, 2014: Soldiers kill Nazario Moreno Gonzalez, leader of La Familia Michoacana and later Knights Templar, while he was riding a mule in remote Michoacan mountains. The government had wrongly claimed that he was killed in December 2010.
— Feb. 22, 2014: Mexican and U.S. officials capture world's most powerful drug lord, Joaquin "El Chapo" Guzman of the Sinaloa Cartel, in the beach resort of Mazatlan.
—July 15, 2013: Officials in northern Mexico arrest Miguel Angel Trevino Morales, alias "Z-40," alleged leader of the Zetas cartel.
—Oct. 7, 2012: Marines kill Heriberto Lazcano Lazcano, founder and top leader of the Zetas. His body later is stolen from a funeral home.
—Sept. 12, 2012: Marines capture purported top Gulf Cartel leader Jorge Eduardo Costilla Sanchez, alias "El Coss."
—July 29, 2010: Soldiers raid a house in the city of Zapopan and kill Ignacio "Nacho" Coronel, a senior leader of the Sinaloa Cartel.
—Dec. 16, 2009: Marines kill Arturo Beltran Leyva, leader of Beltran Leyva cartel, in shootout in Cuernavaca.