Treaties & Agreements

Treaties, accords, and diplomatic agreements that ended wars, fixed borders, and reshaped America's place in the world.

Compromise of 1850

The last great legislative bargain before the Union broke apart

Jay Treaty

The 1794 agreement that kept peace with Britain — and nearly tore the republic apart

Louisiana Purchase

The 1803 land acquisition that doubled the size of the United States

NAFTA

The 1994 trade pact that bound North America together

The Adams-Onís Treaty

The 1819 treaty that gave the United States Florida and a line to the Pacific

The Gadsden Purchase

The 1854 land deal that finished the map of the lower 48

The Paris Climate Agreement

The 2015 global pact to limit climate change — and America's wavering role

Treaty of Guadalupe Hidalgo

The 1848 peace that gave the United States a third of a continent — and intensified the slavery crisis

Treaty of Versailles

The 1919 peace that ended World War I — and planted the seeds of World War II