Denmark has warned its soldiers will "shoot first, ask questions later" if the US attempts to invade Greenland, reaffirming a Cold War-era directive. This warning follows renewed threats from US President Donald Trump to acquire the Arctic island, citing national security. The US is reportedly considering offering direct cash payments, ranging from $10,000 to $100,000 per person, to Greenlanders to encourage secession from Denmark. Envoys from Denmark and Greenland are lobbying US officials and lawmakers to de-escalate the situation, while European leaders express concern over the potential impact on NATO.