Guano, or bird poop, was a critical resource in the 19th century due to its high nitrogen content, which was essential for fertilizing depleted farmland. The U.S. claimed uninhabited islands rich in guano, such as Navassa Island, to secure this resource. This marked the beginning of America's overseas territorial expansion, as these islands became the first U.S. territories outside the contiguous mainland.
The Supreme Court ruled in favor of overseas expansion in the case of Navassa Island, where African-American guano miners mutinied against abusive conditions. The court decided that the U.S. could legally expand overseas, establishing the constitutional foundation for America's territorial empire. This decision also implied that U.S. laws applied to these territories, though enforcement was inconsistent.
In 1898, the U.S. engaged in an 'imperial shopping spree,' acquiring territories like the Philippines, Guam, Puerto Rico, and Hawaii after the Spanish-American War. This expansion marked a shift in how Americans viewed their country, with new maps showing the U.S. as a global empire. It also sparked debates about America's role as a colonial power and its democratic values.
The U.S. justified its actions in the Philippines using the rhetoric of 'civilizing' and 'uplifting' Filipinos, echoing the British concept of the 'white man's burden.' Leaders like Teddy Roosevelt argued that the U.S. had a duty to educate and modernize its colonial subjects, despite the violent and bloody war that ensued to suppress Filipino independence movements.
Puerto Rico became a U.S. territory after the Spanish-American War, but its residents were denied full constitutional rights. The Insular Cases of 1901 established that Puerto Rico existed in an 'extra-constitutional zone,' meaning its people were U.S. nationals but not citizens. This legal ambiguity persists today, with Puerto Ricans holding statutory citizenship that can theoretically be revoked.
After World War II, the U.S. shifted from a territorial empire to a 'pointillist empire,' relying on military bases and technological advancements rather than direct colonial control. Synthetic substitutes for resources like rubber and plastic reduced the need for colonies, while radio and air transport allowed the U.S. to project power globally without occupying large territories.
Osama bin Laden's father, Mohammed bin Laden, built U.S. military bases in Saudi Arabia, including the Dhahran base. Osama grew up around these bases and later resented their presence, viewing them as symbols of U.S. imperialism. This resentment fueled his jihad against the U.S., culminating in the 1996 bombing of the Dhahran base, which his father had helped construct.
The U.S. reconciled its democratic values with imperialism by largely ignoring its overseas territories in public discourse and legal frameworks. The Insular Cases created a legal distinction between the mainland and territories, allowing the U.S. to maintain its self-image as a republic while ruling over non-white populations without granting them full constitutional rights.
The complete story of American imperialism is missing from our history books. On this week’s On the Media, how the United States worked to capture territory and expand power, while preaching democracy and freedom.
[01:00] Host Brooke Gladstone sits down with historian Daniel Immerwahr, on the hidden history of the United States empire. For Americans, empire often means economic and military power abroad, or CIA coups in Central America–not British-style imperialism. But the American empire was — and in some ways continues to be — a lot closer than most people realize. Immerwahr explains the role of guano — bird poop — in launching America's overseas empire, and the legal, political and social clashes that ensued.
[17:57] Host Brooke Gladstone continues her conversation with historian Daniel Immerwahr, exploring why, at the dawn of the last century, the arguments over imperialism didn’t end with poets like Rudyard Kipling and writers like Mark Twain. How should the adolescent U.S., big-headed about its democratic values, grapple with capturing territory? Immerwahr explains how this vital debate blazed across America’s consciousness like a comet, then vanished just as quickly.
[34:47] Host Brooke Gladstone and historian Daniel Immerwahr conclude their conversation, discussing how, after World War II, global anti-colonial sentiment (combined with less dependence on natural resources) led to a shrinking of America's physical empire. But the American empire didn't disappear — it merely changed form.
This originally aired in our April 5, 2019 program, “Empire State of Mind.)”
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