HALLE, Belgium, 2015-8-7— /EPR Retail News/ — Colruyt Group and its current partners of the purchasing group CORE (the Swiss Coop and Italian Conad) combined their forces with the oldest European retail alliance Alidis. The "Alliance Internationale de Distributeurs" is composed of the German Edeka, the Spanish Eroski and the French Groupement des Mousquetaires, and…