Military Medal (MM) were created to recognize the gallantry of junior officers in the field. The two were awarded for "gallantry in the field," the only difference being that the MC was for officers (although not above the rank of captain), and the MM for other ranks. In both cases, additional awards are indicated by silver bars worn over the ribbon. At first, recipients of the Military Cross were not allowed to use the letters MC after their names to indicate their award, but this restriction was later withdrawn.