(naval personnel serving in a maritime security or maritime combat related role) to earn a warfare qualification. Core qualification skills will include but not be limited to weapons qualification and maintenance, marksmanship, land navigation, field communications, and expeditionary camp deployment. The design of the new pin encompasses the essence of enlisted expeditionary Sailors, presenting the bow and superstructure of a Sea Ark 34' patrol boat from Inshore Boat Units superimposed upon a crossed cutlass and M16A1 rifle. The waves represent the Navy's heritage, the cutlass represents the enlisted force, the M16A1 represents an NECC mission area and the boat, another NECC mission area. The background is the traditional waves of the Enlisted Surface Warfare Specialist Insignia. The Navy Expeditionary Supply Corps Officer (NESCO) program is designed to recognize significant contributions made by Supply Corps officers while serving in operational expeditionary billets. Navy Expeditionary Supply Corps officer qualification represents a level of expeditionary knowledge that distinguishes an officer of the Supply Corps from his or her peers. The Navy Expeditionary Supply Corps officer qualification program is mandatory for all Supply Corps officers serving in designated billets as determined by Commander, Navy Expeditionary Combat Command (COMNAVEXPDCMBTCOM) and Commander, Naval Special Warfare Command (COMNAVSPECWARCOM). Commanders and above with other Supply Corps professional qualification (e.g., Naval Aviation Supply Corps officer or Surface Warfare Supply Corps officer) may elect not to participate, but Navy Expeditionary Supply Corps officer qualification is encouraged for these officers.[1] The Navy Expeditionary Supply Corps Officer (NESCO) insignia is a gold metal pin showing a Supply Corps oak leaf centered, superimposed on a crossed sword and M16A1 rifle, on a background of ocean swells. A metal insignia is available for uniforms requiring miniature medals. The newest surface warfare qualification insignia to be implemented by the U.S. Navy is the Strategic Sealift Officer Warfare Insignia (SSOWI). The SSOWI is a redesign of the old Navy Reserve Merchant Marine Insignia, also known as the "Golden Chicken" or "Sea Chicken", originally created in 1938. The SSOWI is approved for wear by officers who have successfully completed the qualification requirements outlined in OPNAVINST 1534.1E. The insignia may be worn by: A Commissioned Officer in the U.S. Navy (or in the Naval Reserves) holding a valid U.S. Merchant Marine License for vessels of unlimited ocean tonnage or horsepower. U.S. Merchant Marine Officers who are U.S. Navy Reserve officers while wearing U.S. Navy, U.S. Merchant Marine or