151203-N-KR961-044 SAN DIEGO (Dec. 4, 2015) Seaman Tyriq Turner handles a mooring line as amphibious assault ship USS Boxer (LHD 4) gets underway from Naval Base San Diego. The Boxer Amphibious Ready Group (ARG) is underway off the coast of Southern California completing a certification exercise (CERTEX). CERTEX is the final evaluation of the 13th Marine Expeditionary Unit (13th MEU) and Boxer ARG prior to deployment and is intended to certify their readiness to conduct integrated missions across the full spectrum of military operations. (U. S. Navy photo by Mass Communication Specialist 2nd Class Debra Daco/Released)