At a high level, President Trump’s focus on Greenland is about its increasing importance to U.S. national security and the energy dominance that he has promised to deliver. The increased importance of Greenland in these two areas, versus its importance during the height of the Cold War, come from changes in polar ice coverage making once impassible sea lanes and impenetrable territories far less so. This increased accessibility to the Arctic Sea and land masses, coupled with powerful icebreakers, has opened new opportunities for vastly increased merchant shipping, much better access to the Arctic’s vast natural resources, and increased human habitation.
Elaborating a bit, Greenland is placed strategically along two potential shipping routes through the Arctic: The Northwest Passage bordering the North America’s northern coastline and the Transpolar Sea Route right through the center of the Arctic Ocean. With changes in ice coverage, these routes have seen big increases in ships transiting them, both military and commercial. This makes Greenland far more strategic than it was during the Cold War.
Further enhancing the strategic value of Greenland is that roughly two-thirds of it is actually in the Arctic Circle. This makes it is an excellent hopping off point/staging area for accessing the Arctic region that is highly complementary to the 15 percent of Arctic territory the United States controls via Alaska. Because about one-half (53 percent) of the Arctic is part of Russia, fully leveraging Greenland, as well as Alaska, is essential for the United States’ ability to compete for presence in and control of the Arctic region. But merely leveraging Greenland will not be enough. To be positioned to compete for Arctic influence and control, you need a very critical manmade resource that the United States is short on and Russia is rich in—icebreakers
Indeed, Russia’s fleet of nuclear and conventionally powered icebreakers enables it to support operations in the Arctic region at a level far beyond what the United States will be able to match given its lack of shipbuilding capacity, which also has the U.S. Navy struggling to avoid an ever-decreasing number of deployable ships.
Adding to U.S. woes when it comes to competing for Arctic control is that the Ukraine-Russia conflict has brought China and Russia much closer together than at any other time in modern history. This has resulted in China, the largest shipbuilder in the world by far, and Russia partnering to dominate the Arctic.
Consequently, even with the United States being able to fully leverage Greenland, it faces a steep climb when it comes to securing a slice of the Arctic pie commensurate with its leading position in the Great Power competition. Of course, all that could change if Canada and the United States came to a mutually beneficial agreement to work together to take advantage of the natural resources contained in the 40 percent of the Arctic that is part of Canada.
However, as important as Greenland is in securing substantial deposits of rare earth elements and oil, its role in securing the United States’ northern flank is more important immediately. And Greenland, even with Denmark’s support, is not up to the task.