On Feb. 2, 1848, the war between the United States and Mexico formally ended with the signing of the Treaty of Guadalupe ...

Territorial expansion allowed the federal government to directly rule its many new federal citizens without any state ...

Territorial expansion allowed the federal government to directly rule its many new federal citizens without any state government as intermediary.

The U.S. initially acquired the rights to build and operate the Panama Canal in 1903 through the Hay–Bunau–Varilla Treaty ...

Migrants wearing face masks and shackles on their hands and feet sit on a military aircraft at Fort Bliss in El Paso, Tx., ...

President Donald Trump has refused to rule out military coercion to acquire Greenland and the Panama Canal, and he suggested ...

Treaty of Guadalupe Hidalgo was signed in the village of Guadalupe Hidalgo on Feb. 2, 1848, ending the Mexican War and extending the boundaries of the United States west to the Pacific Ocean.

Many are working to ensure their citizens’ safety amid rising reports of Native people being stopped and questioned.

Experts warn Customs and Border Protection’s wall through the Tijuana River will eventually cause catastrophic flooding in ...

1802: The first leopard in captivity is exhibited in Boston, US. 1823: Gioachina Rossini’s opera “Semiramide” premieres in ...