The medal is circular, made of silver-coloured oxidised metal, 36 mm in diameter. The
obverse of the medal displays the letters
WEU arranged horizontally for "Western European Union". Above the letter
E is the letter
U and below the letter
O. UEO is the acronym for the French equivalent, ''Union de l'Europe Occidentale
. Below the acronyms, arranged along the edge, are ten five pointed stars. The reverse bears the Latin words in relief, PRO PACE UNUM'', meaning "one for peace", or
idiomatically as "united for peace". The suspension ribbon of the medal is blue with a central stripe of yellow-gold. Worn on the ribbon are
clasps naming the mission for which the medal is awarded. The
service ribbon is the same as the suspension ribbon, utilizing miniature versions of the clasps. ==Order of wear==