Final answer:
Settlers moved onto Mexican land in Texas, leading to conflict and eventually the Texas Revolution.
Step-by-step explanation:
When settlers moved into Texas, they moved onto land that belonged to Mexico. The influx of American settlers into Mexican territory created conflicts due to cultural and religious differences, as well as disagreements over the institution of slavery. These tensions eventually led to the Texas Revolution in 1835-1836, resulting in Texas declaring independence as the Republic of Texas.