The Polar class icebreakers are heavy polar vessels used for breaking thick ice, supporting scientific expeditions, and ensuring access to remote polar research stations. They play a critical role in maintaining access to Arctic and Antarctic regions for both scientific and strategic purposes.
Deployment Began: Thu Nov 20, 2025
Deployment Ended: Mon Apr 13, 2026
Days Deployed: 144 days
Deployment Location: Antarctic waters / McMurdo Station and return transit after Operation Deep Freeze mission (departed Antarctic region March 8, 2026)
Post-Deployment Location: Returned to homeport Seattle
Mission: USCGC Polar Star completed its Antarctic icebreaking and logistics-support mission for Operation Deep Freeze 2026, including McMurdo resupply channel breakout and escort of supply vessels.