This thesis, on the French army mutinies of 1917, was published in 1967 and was the first to provide detailed statistical analysis of more than 600 courts martial, based on his then unprecedented access to the French military justice archives.
He was director of the Institut d'Histoire des conflits contemporains, from 1983 to 1995, and publisher of the Revue des guerres mondiales et des conflits contemporains from 1985 to 1997.