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

The United States has quietly redrawn the risk map of its own backyard, treating the skies above a key partner as potential ...

The United States is escalating pressure on the Mexican government to permit the U.S. military to target fentanyl labs, ...

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

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 ...

In 1846, U.S. soldiers set out to conquer Mexican territory and Pres. Polk sets aim on Mexico City. In June of 1846, an army of 1600 soldiers begin a 900-mile march to conquer the Mexican territory of ...

Though the relationship between the United States and Mexico has rarely been perfect, recent tensions have only seemed to increase between the two countries as a whole, as well as between the United ...

In December 1846, the largest battle of the US-Mexico War in California occurred about 30 miles north of Old Town, in the San Pasqual Valley near today’s San Diego Zoo Safari Park. American and ...