Junior officer

From 1973, Irastorza commanded a combat section of the 3rd Marine Infantry Regiment. Later, he joined the paratroopers by transferring to the 2nd Marine Infantry Parachute Regiment, with the same rank. In 1979, he took part in Opération Tacaud, in Chad.^[2]

In 1980, promoted to captain, Irastorza was given command of a company of the 8th Marine Infantry Parachute Regiment.^[2]

From 1982, he taught at the instruction centre for military preparation in Montpellier, until 1985 when he joined the general staff of the 3rd military region in Rennes as officer for logistics.

Senior officer and higher studies

Irastorza then completed his studies and oriented himself towards a high-ranking career by attending the École d'application de l'infanterie, obtaining a Master of Advanced Studies in Defence and international relations in 1986^[2] and attending the École supérieure de guerre the next year.

In 1989, he obtained the degree^[3] that validates training in command and general staff duties.^[4] He then joined the RIMAP as chief of operations.^[2]

Promoted to lieutenant-colonel, Irastorza assumed command of the 8e RPIMa in 1991. The next year, he supervised the 1st French battalion of the UNTAC.^[2]

From 1993 to 1996, Irastorza was desk officer and second in command at the complement officer of the general staff of the Army, in Paris. He then moved on to serve at the office of military personnel of the Army (DPMAT); from 2000, he was under-director of the DPMAT in charge of recruitment.^[2]

General officer

Irastorza was promoted to brigadier general on 1 October 2000.^[1]

In 2002, Irastorza went to supervise the École d'application de l'infanterie. From 2004, he served as aid to the head of the chief of the Force d'action Terrestre.^[2]

From 15 June 2005 and June 2006, he commanded the Force Licorne in the Ivory Coast.

Irastorza has served as Chief of Staff of the French Army since 2 July 2008.^[2][5] He retired from the army on the 31 August 2011.^[5]