Role players enjoy shelter, food and water after being cared for by Combat Logistics Battalion 15, 15th Marine Expeditionary Unit, during a humanitarian assistance operation in the Sierra Training Area, here, June 5. The operation was in support of the Amphibious Squadron Three and 15th MEU’s pre-deployment training titled PHIBRON-MEU Interoperability Training. The exercise will help the two units function as a blue-green team capable of conducting worldwide missions ranging from humanitarian aid to combat.