The Yser Medal was awarded to the members of the Belgian Armed Forces who were part of the army fighting along the Yser river between 17 and 31 October 1914 that proved themselves worthy of the distinction. The medal could also be awarded to foreign nationals, members of allied military forces who took part in the Battle of the Yser. The medal could be awarded posthumously.
The Yser Medal was worn on the left side of the chest and when in the presence of other awards of Belgium, was placed directly after the Croix de Guerre (War Cross)