The 150 crewmembers of the US Coast Guard Cutter Polar Star arrived on January 17, in Antarctica along with a resupply vessel during Operation Deep Freeze. This is a joint military service mission to resupply US interests in Antarctica.
The 42-year-old Coast Guard cutter is the US’s only operational heavy icebreaker, and the crew is making their sixth deployment the resupply of McMurdo Station, – the US’s main logistics hub in Antarctica. Operation Deep Freeze is a joint military service mission...
https://safety4sea.com/uscgs-only-heavy-icebreaker-reaches-antarctica/