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"Increase Collaboration with South America to Protect U.S. Antarctic Interests"
Wilder Alejandro Sanchez and William Muntean
25 November 2025
Published: https://cimsec.org/increase-collaboration-with-south-america-to-protect-u-s-antarctic-interests/
The United States has significant national interests in Antarctica, but it currently lacks the maritime capacity to secure them. The United States sent more commercial vessels (42) and citizens (over 50,000) to the Southern Ocean than any other country during the 2023/2024 season. The United States, unlike many other nations, can also conduct unannounced inspections of stations and equipment in the region. However, the U.S. government is reducing its icebreaker capacity in the region by removing two vessels from service, continuing to rely on one heavy icebreaker that is beyond its expected service life. As of this writing, the United States has yet to take concrete steps to design and build appropriate vessels to ensure continued access in the region.
While Washington has acted to eventually address icebreaker shortcomings in the Arctic, it has not taken similar steps to protect its Antarctic interests. Therefore, as it starts the lengthy process of planning and building Polar Security Cutters for Antarctic operations, the United States should increase its collaboration with South American countries. Doing so will strengthen already-positive relations with key South American countries, protect American citizens and economic interests, and help the United States leverage Antarctic Treaty provisions to maintain peace in the region amid growing geopolitical interests.
