 Student of the Lycée militaire de Saint-Cyr, then the École spéciale militaire de Saint-Cyr (promotion Général Lasalle 1979-1981), he chose then the infantry application school at Montpellier.He served in the 8th Marine Infantry Parachute Regiment 8e RPIMa at Castres on three different occasions, as a section (platoon) chief and paratrooper instructor from 1982 to 1985, assistant officer then commandant of a company between 1986 and 1990, and finally after being nominated to Colonel on 1 October 2000, in quality as a regimental commander from 2011 to 2003.Jean-Pierre Bosser was particularly renowned for becoming a paratrooper instructor, particularly at the 8th Parachute Regiment of the Troupes de marine, and participated to a dozen of exterior operations.