The 150-member crew of the U.S. Coast Guard cutter Polar Star returned Monday to their homeport of Seattle following a 105-day deployment to Antarctica in support of Operation Deep Freeze.
Operation Deep Freeze is an annual joint military service mission in support of the National Science Foundation, the lead agency for the United States Antarctic Program. Since 1955, the U.S. Department of Defense and the Coast Guard have assisted in providing air and maritime support throughout the Antarctic...
https://www.workboat.com/news/government/polar-star-returns-home-following-105-day-antarctic-trip/