How the United States Learned to Rule Without Annexation
The sound is not unfamiliar.
It is the scrape of a pen across paper in a room where the outcome has already been decided. Ink drying on a clause written in someone else’s language. The dull knock of a customs stamp. A calm voice explaining—reasonably, almost kindly—that this is simply how things will be arranged now.
American power has often arrived this way. Not with trumpets, but with paperwork.
From the beginning, the United States developed a distinctive method of expansion. Outcomes were enforced through agreement rather than proclamation, dominance expressed through process rather than flag. Sovereignty was acknowledged in principle, reshaped in practice. The result was not classical empire, but something quieter and more durable: conditional sovereignty.
This is not a claim that American power has been uniform, illegitimate, or equally coercive across eras. The degree of consent, constraint, and benefit has varied widely. But the governing pattern—the preference for control without annexation—has been remarkably consistent.
In the early republic, expansion did not announce itself as conquest. It presented as inevitability. Treaties with Native nations were signed, revised, violated, and replaced with administrative regularity. Removal was framed as protection. Violence was reframed as order. By the time forced relocation hardened into federal policy, the underlying rule was clear: sovereignty existed until it interfered with American need. After that, it became negotiable.¹
This was not hypocrisy so much as habit. The United States learned early that power exercised through law felt cleaner than power exercised through decree—and more defensible to itself.
That habit shaped the nineteenth century. When President James K. Polk sent troops south in 1846, he did not describe war with Mexico as imperial ambition. He described it as response—a border incident, a provocation, a necessity. By the time U.S.