 Auditor of the Institut des hautes études de Défense nationale IHEDN and the Centre des hautes études militaires CHEM during the academic years 2003–2004, Rogel joined after the Élysée as assistant to the Chief of the Military Staff of the President of the Republic, charged with the concerned maritime dossiers and the sequence of exterior military operations.From September 2006 to August 2009, Rogel was the cabinet chief to the Chief of the general staff headquarters of the Armies CEMA, then deputy chief of general staff «Opérations» (operations) of the general staff headquarters of the Armies EMA directing for two years the inter-arm exterior operations.Simultaneously under his responsibility featured various commands including the inter-arm space commandment, the cyber defense of the Armies, the inter-arm commandment of helicopters and assumed the lead role of numerous other divisions of the EMA.