200123-N-WD133-098 MCMURDO STATION, Antarctica (Jan. 23, 2020) A section of a causeway system is moved into place at McMurdo Station, Antarctica. The modular causeway system replaces the traditionally used ice-pier for cargo operations, due to damages. MV Ocean Giant is one of three Military Sealift Command chartered ships delivering supplies in support of Operation Deep Freeze, the Joint Task Force Support for Antarctica mission to resupply the remote scientific outpost. (U.S. Navy photo by Sarah Burford/Released)