This blog first appeared in The National Interest.

The return of President Donald Trump to the White House has not only increased geopolitical volatility – it has fundamentally altered expectations about how far major powers are willing to go to secure strategic advantage. What once seemed rhetorical excess—such as his repeated remarks about acquiring Greenland – now appears less implausible in light of recent events. From the escalating crisis in Venezuela in early 2026 to the ongoing Iran War as of May 2026, the United States has signaled a willingness to pursue geopolitical advantage with fewer constraints than before.

Against this backdrop, the Arctic is no longer a peripheral theater. It is rapidly emerging as a central arena where climate change, energy security, and great-power competition intersect. The question is not whether the Arctic matters, but how states will position themselves in a region where the rules are still being written.

A Strategic Arctic, not a Peripheral One

The renewed US interest in Greenland should not be understood narrowly as a territorial ambition. Rather, it reflects a broader strategic calculation about the Arctic. The melting of Arctic ice – combined with technological advances—is making previously inaccessible resources and shipping routes increasingly viable. In this sense, Greenland is not the story – the Arctic is.

The Arctic is estimated to hold roughly 13 percent of the world’s undiscovered oil and 30 percent of its natural gas, making it one of the last major frontiers of global energy development. At the same time, new maritime routes such as the Northern Sea Route (NSR) and the emerging Transpolar Sea Route (TSR) promise to significantly shorten shipping distances between Asia and Europe.

For major powers, the implications are profound. Russia has already positioned itself as the dominant Arctic actor, leveraging its geography and resource base. China, through its “Polar Silk Road” initiative, seeks to embed the Arctic into its broader connectivity strategy. Meanwhile, the United States, increasingly viewing the region through a strategic lens, is attempting to mobilize its alliances to counterbalance these moves.

As recent studies suggest, the Arctic is becoming a new frontier of great-power competition – one where economic, military, and legal dimensions are deeply intertwined.

Why South Korea Is Paying Attention to the Arctic 

For South Korea, interest in the Arctic may appear surprising at first glance – especially given the ideological orientation of its current progressive government. Traditionally, progressive administrations in Seoul have emphasized engagement with continental powers such as China and Russia, while seeking rapprochement with North Korea. They have also shown interest in infrastructure connectivity across the Eurasian landmass.

Yet the Arctic presents a different kind of opportunity – one that aligns with both geopolitical necessity and economic ambition.

Eunjung Lim, a professor in the Division of International Studies at Kongju National University (KNU), is a visiting scholar at Shorenstein APARC from April 2026 to February 2027. She is also a member of the governing board of the Asia-Pacific Leadership Network and a member of the Subcommittee on Energy and Just Transition of the Presidential Commission on Carbon Neutrality and Green Growth. She earned a BA from the University of Tokyo, an MIA from Columbia University’s School of International and Public Affairs, and a PhD from Johns Hopkins University’s School of Advanced International Studies.