The U.S. Coast Guard’s Icebreaker, Polar Star, Embarks on Operation Deep Freeze

The U.S.’s annual supply mission to Antarctica known as Operation Deep Freeze is moving into its next phase as the Polar Star, the U.S. Coast Guard’s only heavy icebreaker, started the final leg of its deployment. It will take her from Australia to the bases in the Antarctic, marking the icebreaker’s 28th voyage to Antarctica.

Operation Deep Freeze Mission

Operation Deep Freeze is a joint military service mission to resupply the United States Antarctic stations of the National Science Foundation. The Polar Star provides heavy icebreaking capabilities to facilitate sealift, seaport access, bulk fuel supply, and cargo handling for two of the U.S.’s three research stations in Antarctica, including the largest, McMurdo Station.

The cutter’s icebreaking capabilities enable the delivery of critical supplies to sustain year-round operations and support international partnerships in the harsh Antarctic environment.

Challenges and Preparations

Operation Deep Freeze is one of the more challenging U.S. military peacetime missions due to the harsh Antarctic environment. Each trip requires careful planning and coordination, with the crew receiving training to support the vital mission despite the austere conditions.

Deployment Details

The Polar Star departed from Seattle on November 22, traveling approximately 7,000 miles before reaching Sydney, Australia on December 21. After loading fuel and supplies, she departed on December 27 for the journey to Antarctica.

The icebreaker is equipped with powerful engines capable of breaking through thick ice, essential for navigating the Antarctic region. The USCG is working to extend her service while awaiting the arrival of new icebreakers.

Future Plans

Construction on the first next-generation icebreaker, Polar Sentinel, is set to begin, but it is not expected to be operational until 2029. In the meantime, the Polar Star continues to play a critical role in supporting Antarctic operations.

Seabees’ Involvement

The Seabees were deployed in October 2024 to undertake a waterfront construction project in Antarctica, providing essential infrastructure to support logistics operations at McMurdo Station.

Conclusion

Operation Deep Freeze, with the Polar Star at its helm, exemplifies the U.S.’s commitment to supporting scientific research and maintaining a presence in the challenging Antarctic environment. As the mission continues, the importance of icebreaking capabilities and logistical support cannot be understated.