A peace treaty ended the Mexican–American War in February 1848 and officially left California as new American territory.

MEXICO CITY — It may be “OK” with President Donald Trump, but Mexico rejects any U.S. strikes against cartels in its territory. That was the message reiterated Tuesday by Mexican President Claudia ...

The Mexican-American War began with disputed borders and ended with one of the largest land transfers in U.S. history. Outmatched and divided, Mexico struggled against a rising American power ...

After the United States government celebrated the capture of Nicolás Maduro in Venezuela, President Donald Trump issued ...

After the conflict, Pico lived at the San Fernando Mission and began extracting asphaltum from an area east of present-day ...

Two 19th Century wars are often overshadowed by the Civil War when many Americans think of U.S. history. The War of 1812 occurred in 1812-15 and was fought with Great Britain and indigenous allies.

Almanac. The United States and Mexico: close neighbors with different goals -- The fight for Texas independence -- Two nations on the brink of war -- The war begins in northern Mexico and even further ...

It may be "OK" with President Trump, but Mexico rejects any U.S. strikes against cartels in its territory. That was the message reiterated Tuesday by Mexican President Claudia Sheinbaum, who has ...