Danish Prime Minister Mette Frederiksen has declared that her country faces a "decisive moment" regarding the future of Greenland, a self-governing Arctic island within the Kingdom of Denmark. This assertion comes as former US President Donald Trump has reportedly renewed his threats to acquire Greenland, even suggesting the use of military force if a deal cannot be made 'the easy way'. These developments highlight Greenland's increasing significance in global geopolitics, primarily due to its strategic location in the Arctic and its vast, untapped reserves of critical raw materials, including rare earth elements, lithium, and uranium. Greenland is home to some of the world's largest rare earth deposits, which are crucial for advanced technologies and the green energy transition, leading to intense competition among global powers. Both the United States and China have long-standing interests in Greenland's resources and its role in emerging Arctic shipping routes as ice melts due to climate change. The Danish government has consistently rejected any notion of selling Greenland, and Greenlandic political parties have firmly stated that the island is not for sale and its future must be decided by its people. Analysts suggest that Trump's renewed push is also driven by a desire to counter growing Russian and Chinese influence in the Arctic region. The situation raises serious questions about the relationship between NATO allies, as both the US and Denmark are founding members, and any attempt by one member to seize territory from another would be unprecedented. European and Canadian leaders have reportedly expressed support for Denmark and Greenland, working on contingency plans if the US escalates its threats. The challenges of mining in Greenland's harsh environment and lack of infrastructure have so far prevented large-scale extraction of these minerals. However, the strategic imperative for diversifying supply chains away from current concentrations, particularly China's dominance in rare earths, continues to fuel international interest in Greenland's potential.