An ammunition supply system includes a weapon mounted on an exterior of a fighting vehicle; a magazine loading unit mounted on the exterior of the fighting vehicle and configured to load a magazine for the weapon; a hatch unit configured to form an entrance to allow a combatant to enter and exit the fighting vehicle; and a hatch lifting unit configured to supply power to the hatch unit to move in a vertical direction with respect to the fighting vehicle. The hatch unit includes: a hatch door unit through which the combatant enters and exits the fighting vehicle, and a hatch passage part forming a passage for connecting the hatch door unit and an interior of the fighting vehicle. The hatch passage part includes a first opening facing the magazine loading unit so that the magazine is transferred from the interior of the fighting vehicle to the magazine loading unit without the combatant being exposed to the exterior of the fighting vehicle.

An armored vehicle, or battle tank, has a turret, the backplane of which has a hatch allowing access to an inner volume of the turret from the inner volume of the vehicle body. The access hatch has a rectangular-shaped opening and includes a plate for closing up the opening in the form of a plurality of sectors able first to slide in a translational movement in a horizontal movement section and next to be stacked on one another in a vertical stacking section, during the opening of the hatch, the sections being located superimposed in or above the backplane. The access hatch sectors and the backplane include ballistic protection in the form of a metal armor plate covered with an anti-spall coating.