Bridgetown, Ӱ, March 26th, 2014 (CDEMA) - “A clear understanding of roles, responsibilities, functions and rules of engagement during relief operations is extremely important for the members of the CARICOM Disaster Relief Unit (CDRU) and this is emphasized during their annual training,” said Joanne Persad, Manager, Response and Recovery, CDEMA as the CDRU ended a week of training with field exercises in St. Croix.