 Admitted as a candidate at the Inter-Arm Defense College () at Paris in 1994, Rogel became then second-in-command of the anti-submarine frigate "Tourville" then SNLE "L'Indomptable".Rogel then worked at the general staff headquarters of the Armies EMA, as an assistant «Mer» (sea) to the cabinet of the Chief of the general staff headquarters of the Armies from January 1998 until April 2000.He reassumed a commandment from April 2000 until December 2011, on the French nuclear ballistic missile submarine SNLE "L'Inflexible" with whom he conducted two operational patrols, then joined in January 2002 the general staff headquarters of the amiral, commanding the Force océanique stratégique FOST, where he was division chief of «Conduite des opérations» (operations conduit), then chief of that general staff headquarters function.