NATO MSM Full Size Medal Category_ Miniature Long & Meritorious Service The qualifying period for all The qualifying period for all the operations relating to Africa is 30 days continuous service or 60 days accumulated service within a two year period Until 1901 the medal's obverse contained an image of a trophy of arms with the Royal Arms in an oval shield in the centre while the reverse side contained the inscription "For Long Service and Good Conduct" The UK eligibility is: A specified period of service is not required either as qualifying service or for the posthumous award of the NATO MSM to personnel killed