When he said he intended to impose tariffs not only on Denmark but also on other NATO allies to get them to the bargaining table, stock markets were roiled worldwide. Greenland has a population not much larger than Chapel Hill spread across a vast and often cold and desolate landscape. It will take the full combined efforts of all NATO allies to protect Greenland and to undergo the dangerous but important mining efforts to extract these strategic minerals. Like every other NATO country, Denmark has relied on American military protection since World War II. There is some military involvement from other NATO nations in Greenland today, but not to any significant degree compared to American forces or installations.