28 E. Facts related to the forced disappearances of Manuel Antonio Bonilla and Ricardo Abarca Ayala 78. Manuel Antonio Bonilla was born on December 7, 1971, in the canton of Cerros de San Pedro, municipality of San Esteban Catarina, department of San Vicente. 132 Manuel Antonio Bonilla is the son of María de los Ángeles Osorio and José de la Paz Bonilla 133 and brother of José Arístides Bonilla 134 and María Inés Bonilla de Galán. 135 His maternal grandmother is María Josefa Rosales. 136 María Esperanza Alvarado and Luis Alberto Alvarado were also part of the family.137 79. Ricardo Abarca Ayala was born on February 5, 1969, in the canton of Cerros de San Pedro, municipality of San Esteban Catarina, department of San Vicente. 138 He is the son of Juan José Ayala and Petronila Abarca Alvarado,139 and brother of Daniel,140 José Humberto,141 Ester,142 and Osmín.143 His family also included his grandmother, Paula Alvarado.144 80. From August 17 to 24, 1982, a large-scale military operation was launched in the department of San Vicente, involving, among other units, members of the Fifth Infantry Brigade and the “Atlacatl” and “Juan Ramón Belloso” Immediate Response Infantry Battalions (BIRI). 145 The operation was Cf. Birth certificate of Manuel Antonio Bonilla issued by the Family Status Registry of the Municipal Office of Villa de of San Esteban Catarina (evidence file, volume IV, annex 22 to the submission of the case, folio 2009). 132 Cf. Birth certificate of Manuel Antonio Bonilla issued by the Family Status Registry of the Municipal Office of Villa de San Esteban Catarina (evidence file, volume IV, annex 22 to the submission of the case, folio 2009); national identity document of María de los Ángeles Osorio, widow of Bonilla, issued by the National Registry of Natural Persons (evidence file, volume XI, annex to the final written arguments, folio 4928), and death certificate of José de la Paz Bonilla issued by the Family Status Registry of the Municipal Office of San Esteban Catarina (evidence file, volume XI, annexes to the final written arguments, folio 4929). 133 Cf. National identity document of José Arístides Bonilla Osorio issued by the National Registry of Natural Persons (evidence file, volume XI, annexes to the final written arguments, folio 4930). 134 Cf. National identity document of María Inés Bonilla de Galán of issued by the National Registry of Natural Persons (evidence file, volume XI, annexes to the final written arguments, folio 4932). 135 Cf. National identity document of María de los Ángeles Osorio, widow of Bonilla, issued by the National Registry of Natural Persons (evidence file, volume XI, annex to the final written arguments, folio 4928). 136 137 Facts acknowledged by the State. Cf. Birth certificate of Ricardo Abarca Ayala issued by the Family Status Registry of the Municipal Office of Villa de San Esteban Catarina (evidence file, volume IV, annex 23 to the submission of the case, folio 2011). 138 Cf. Birth certificate of Ricardo Abarca Ayala issued by the Family Status Registry of the Municipal Office of Villa de San Esteban Catarina (evidence file, volume IV, annex 23 to the submission of the case, folio 2011), and national identity document of Petronila Abarca Alvarado issued by the National Registry of Natural Persons (evidence file, volume XI, annexes to the final written arguments, folio 4921). 139 Cf. National identity document of Daniel Ayala Abarca issued by the National Registry of Natural Persons (evidence file, volume XI, annexes to the final written arguments, folio 4923). 140 Cf. Birth certificate of José Humberto Abarca Ayala issued by the Family Status Registry of the Municipal Office of San Esteban Catarina (evidence file, volume XI, annexes to the final written arguments, folio 4926). 141 Cf. National identity document of Ester Abarca Ayala issued by the National Registry of Natural Persons (evidence file, volume XI, annexes to the final written arguments, folio 4924). 142 Cf. Birth certificate of Osmín Abarca Ayala issued by the Family Status Registry of the Municipal Office of San Esteban Catarina (evidence file, volume XI, annexes to the final written arguments, folio 4927). 143 Cf. Affidavit rendered by Ester Abarca Ayala on March 21, 2014 (evidence file, volume X, affidavits, folio 4744), and national identity document of Petronila Abarca Alvarado issued by the National Registry of Natural Persons (evidence file, volume XI, annex to the final written arguments, folio 4921). 144 Cf. Newspaper report published in “La Prensa Gráfica” on August 19, 1982, entitled “Clean-up Operation by Armed Forces in San Vicente” (evidence file, volume V, annex 30 to the brief of pleadings, motions and evidence, folio 2403); Press photograph published in the “Diario Latino” on August 19, 1982, entitled “Counterinsurgency actions coordinated” (evidence 145