A cadre member of the 139th Regiment - Regional Training Institute explains to senior leaders and guests how field artillery cannon crew chiefs determine safe data for firing during gunnery operations here, March 14. The 139th RTI was honored as an "Institution of Excellence"from the U.S. Army’s Training and Doctrine Command (TRADOC). The field artillery course is but one of the combat arms classes available for instruction. The 139th RTI holds 23 accreditations ranging from professional development schools like commissioned and noncommissioned officer training to disciplines in infantry, armor, engineers, transportation and health services. (U.S. Army Photo by Capt. Rick Scoggins, North Carolina National Guard Public Affairs)