Onboard the US Navy (USN) Wasp Class Amphibious Assault Ship, USS IWO JIMA (LHD 7), USN Lieutenant Commander (LCDR) Darrel G. Vaughn (left) is assisted by USN Hospital Corpsman Third Class (HM3) Valerie A. Sotomayor, while completing a cavity filling. The IWO JIMA is currently underway in the Atlantic Ocean conducting an Expeditionary Strike Group (ESG) Exercise in preparation for an upcoming deployment