Seaman Diana Guerrero communicates through a sound powered telephone during a well deck operation aboard amphibious assault ship USS Boxer (LHD 4).

EAST SEA (Mar. 12, 2016) Seaman Diana Guerrero communicates through a sound powered telephone during a well deck operation aboard amphibious assault ship USS Boxer (LHD 4). Boxer is the flagship of the Boxer Amphibious Ready Group and is participating in Exercise Ssang Yong 16. Ssang Yong is a biennial combined amphibious exercise conducted by forward-deployed U.S. forces with the Republic of Korea Navy and Marine Corps, Australian Army and Royal New Zealand Army Forces in order to strengthen our interoperability and working relationships across a wide range of military operations - from disaster relief to complex expeditionary operations. (U. S. Navy video by Mass Communication Specialist 2nd Class Debra Daco) File# 160312-N-KR961-008