Xavier Julián Isaac (born 1 December 1962)Boletín del Centro de Estudios Genealógicos de Córdoba, Volúmenes 23-26: página 20. Centro de Estudios Genealógicos de Córdoba, Ediciones "El Centro", 1992 is an Argentine General that served as the Chief of the Joint Chiefs of Staff of the Armed Forces of the Argentine Republic. Prior to his appointment, he served as the Chief of the General Staff of the Argentine Air Force
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