 Later, even for the officers, a blue scarf was provided in the outfit, dressed as a neck-band passing over the right shoulder and knotted on the left side.In 1572 this use was made obligatory for all the officers by Emmanuel Philibert, Duke of Savoy.Through various transformations, the savoy blue scarf is still the main rank of the Italian armed forces' officers, who dress it both in ceremonial services and, sometimes, on guard.