I’m pretty sure it was to increase their wealth and power ! :)
Answer:
Many American settlers and Tejanos, or Mexicans who lived in Texas, wanted to break away from Mexico. They did not like laws made by Santa Anna, Mexico's president. The Tejanos and Texans decided to fight for independence. ... After this, Texans declared independence and formed the Republic of Texas.
D) To help former slaves succeed in post-Civil War America
Monroe doctrine
Monroe doctrine warns European countries to not colonize or puppet monarch
