Ritzau Scanpix Denmark / Reuters

Tom Cotton has carved out a niche in Washington. From his bill slashing legal immigration to his defense of tariffs against China to his calls for attacking Iran and preparing for war with North Korea, the senator from Arkansas—who holds two Harvard degrees and won a Bronze Star in Iraq—has become Trumpism’s respectable face.

So it’s little surprise that his byline appeared in The New York Times yesterday above an op-ed defending Donald Trump’s latest widely mocked gambit. The op-ed’s title: “We Should Buy Greenland.” Its argument: Make colonialism great again.

By fleshing out Trump’s Greenland scheme at length, Cotton has helpfully exposed its colonial assumptions. After first explaining why owning the world’s largest island would be advantageous—Greenland contains lots of oil, gas, and minerals; and if the United States controls it, China can’t—Cotton goes on to explain that buying territory is a hallowed American tradition. “Negotiated acquisition of sovereignty is a longstanding and perfectly legitimate tool of statecraft,” he declares. “More than one-third of America’s territory was purchased from Spain (Florida), France (the Louisiana Purchase), Mexico (the Gadsden Purchase) and Russia (Alaska).”

Cotton is right: In the 19th century, the United States bought large chunks of land from European powers as it expanded south and west. What he doesn’t acknowledge is that in buying that land, the United States also took control of the native peoples—Sioux, Pawnee, Cheyenne, Crow, Seminole, Apache, and Inuit, among many others—who were living on it. And it did so without their consent. The only treaties that mattered were with the distant governments selling the territories in question.

Since then, the notion that white governments can treat nonwhite peoples as commodities—to be traded alongside the land on which they live—has gone out of style. In 1960, amid movements for independence in Africa and Asia, the United Nations General Assembly declared that “the subjection of peoples to alien subjugation, domination and exploitation constitutes a denial of fundamental human rights.”

That’s why Denmark can’t sell Greenland. Although originally subjects of the Danish crown, Greenlanders have gained self-government as colonialism has receded across the world. In 1979, the island acquired its own Parliament and control of its health-care system and schools. In 2008, Greenlanders voted to make Greenlandic—an Inuit language—the island’s official language and to claim a larger share of the revenues produced by the island’s natural resources. Greenland has not opted for independence. But as Danish Prime Minister Mette Frederiksen explained in response to Trump’s offer, “Greenland is not Danish. Greenland is Greenlandic.”

Greenland’s destiny is in its own people’s hands. And they appear to have little interest in becoming part of the United States.

He’s repeatedly lionized General John Pershing for supposedly crushing a Muslim rebellion in the Philippines by dipping bullets in pigs’ blood. The story is false, but the war in which it purportedly occurred was real. That war—in which the United States brutally repressed the Filipino struggle for independence after seizing the territory from Spain in 1898—marked the dawn of American overseas colonialism. That Trump glorifies it is telling.

Trump has also repeatedly declared that after invading Iraq, the United States should have taken its oil. Doing so would have confirmed the suspicions of America’s critics, who saw the war as an imperial venture designed to rob Iraq of its natural resources. But Trump sees no problem with that.

Again and again, he has disregarded the principle that people who live in a given territory should control who governs it. In 2014, when Russia invaded and then annexed Crimea, which had been part of Ukraine, the United States imposed sanctions because Moscow had violated two core principles of the post–World War II order: Nations should not claim territory without the consent of the people living in it, and they should not do so by force. (Russia later sought to validate its seizure of Crimea with a plebiscite that neither the European Union nor the United States accepts as legitimate.) In 2016, however, Trump suggested that he might recognize Russia’s annexation. And in the years since, he’s repeatedly proposed readmitting Moscow to the G7 club of nations, which expelled it after the Crimea invasion.

This year, Trump also recognized Israel’s control of the Golan Heights, another territory annexed without the consent of the people living there. His ambassador to Israel, David Friedman, has suggested that he would not object if Israel annexed parts of the West Bank, as well.

It’s no surprise that Trump often acts as if nonwhite people overseas don’t have the right to determine the fate of the territories where they live. He does something similar at home. When Trump falsely claimed that Barack Obama wasn’t an American citizen and demanded that the “squad” “go back” to the countries from which they came, he was challenging their right to help determine the fate of the United States.

Cotton wants Americans to take Trump’s Greenland initiative seriously. He’s right; they should. Because it’s not an oddball gambit. It’s the application to foreign policy of Trump’s racialized vision of political participation, and his view that the mighty can do whatever they want—whether the weak like it or not. As Cotton suggests, that vision is deeply rooted in America’s past. The debate over buying Greenland is yet one more skirmish over whether it will define America’s future.

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