2° from two months to two years of military detention if the abandonment takes place while he is on duty, on watch or on guard; 3° from two to five years of military detention if the abandonment takes place either in time of war, or in a territory under siege or emergency; 4° to military detention for life if the abandonment takes place in the presence of the enemy, rebels or an armed band. The temporary penalties provided for above shall be doubled if the offender is an officer. The post is the place where the soldier must be at a given time for the accomplishment of the mission he is entrusted by his commanding officer. Any commander of a military unit, vessel or aircraft, who, voluntarily, in the course of a military operation, does not keep his unit, vessel or aircraft in order or voluntarily separates from his commanding officer in the presence of the enemy, rebels or an armed group, shall be also considered to have abandoned his post. Any soldier who voluntarily causes any of the breaches provided for in the preceding paragraph shall be punished by military detention for life. Article 502: Any soldier, who, when the ship or aircraft is in danger, abandons it without orders and in violation of the instructions received, shall be punished by two months to two years of military detention. If he is a crew member, the penalty shall from two to five years. If the convict is an officer, he may also be dismissed. Article 503: Any pilot of a convoyed vessel or ship convicted of abandoning this vessel or ship shall be punished by six months to two years of military detention. If the abandonment takes place in the presence of the enemy, rebels or an armed band or in the event of imminent danger, the penalty shall be five to ten years of military detention. Article 504: Shall be punished with military detention for life: 1° the commander of a vessel, the pilot of a military aircraft who, voluntarily, in case of loss of his vessel or aircraft, does not abandon it last; 2° a commander who is not a pilot and who, under the same conditions, abandons his aircraft before the evacuation of the other persons on board, except for the pilot.