<span>In 1845, the Republic of Texas
was annexed to the United States of America, becoming the 28th U.S.
state. Border disputes between the new state and Mexico, which had never
recognized Texas independence and still considered the area a renegade Mexican state, led to the Mexican–American War (1846–1848).
I hope this helps!
Good day to you.
-Niko
</span>
The answer to your question is: A Monarchy.
