The purpose of the Greenland Sovereignty Protection Act is to prevent the United States government from using federal funds to invade, annex, purchase, or otherwise acquire Greenland. This legislation aims to protect Greenland's sovereignty and ensure that its people can determine their own future without external interference from the U.S. government. Key provisions of the Act include a strict prohibition on the use of federal funds for any activities that would support or facilitate the acquisition of Greenland.