I guess you mean New Mexico. That would be the United States, after the Mexican-American War (1846-1848).
some chocolate is the answer
Hernan Cortes (1485 - 1547) is the Spanish conquistador that conquered Mexico in 1521 and annexed it as an overseas territory of the Spanish Crown.
No Mexico was never part of the Union, Texas which gained independence from Mexico was a slave state and got annexed in the US together with a free state to create equality in congress.
The US annexed Texas from Mexico in 1844 after James K Polk won the presidential election.
50% of the Mexican territory, including the whole states of California, Nevada, Utah, Arizona, New Mexico and Texas, as well as parts of Wyoming, Colorado, Oklahoma and Kansas.
Texas
The significance of Texas being annexed to the US led to war with Mexico.
He conquered the Aztecs and annexed present-day Mexico as an overseas territory of the Spanish Empire.
Mexico refused to recognize the annexation.
Mexico Texas had been an independent country for nine years when it was annexed by the United States.
because of the border problem after they got annexed
We annexed California following our victory over Mexico.
It was Mexico's territory, to begin with. See related questions.
He was a racist senator who wanted to ban slavery in the new states annexed from Mexico.
some chocolate is the answer
Texas qualifies as such.
Texas freed itself before it was annexed. The rest are New Mexico, Arizona, California, Nevada, Colorado, and Utah.