Col. Caudrillier began his military career first as enlisted Infantry then maintenance officer, taking on the CBRN speciality in 2002. Col. Caudrillier became Chief operations of the 2nd Dragoons Battalion in 2005 during which he commanded a CBRN & Surveillance task force in Qatar and for Asian Games security.
In 2007 he was deputy of NATO’s Joint Assessment Team during NRF7, and from 2007 to 2012 he was chief of the CBRN & Health programs section at Joint Staff. Col. Caudrillier was involved in development of French future capabilities, as well as being at the beginning of SAFIR CBRN defence system. From 2012 to 2014 he commanded the 2nd Dragoons Battalion, was Chief of the CBRN Bn, NRF14, and deployed in Poland for Steadfast Jazz in dec. 2013, and from 2014 to 2017, he was in charge of R&D studies at Army Staff. Since 2017, Col. Marc Caudrillier has been the director of the CNCMFE NRBCE in Aix-en-Provence.