Secretary of the Navy Ray Mabus promotes Lance Cpl. Zachary Yerian and Lance Cpl. Marshall Hardin, 1st Battalion, 23rd Marines, on his visit to the LSDH Sargento Aldea in support of Partnership of the Americas 2014. POA 14 is designed to enhance joint and combined interoperability, increase the combined capability to execute Amphibious Operations, Peace Support Operations, and Humanitarian Assistance/Disaster Relief missions, and further develop strong and lasting relationships the U.S. Marine Corps has established with partner nations' naval infantries/marine corps.