Why was the government concerned about the west?

The government was concerned about the West primarily due to issues related to territorial expansion, economic development, and the potential for conflict with Indigenous peoples and foreign powers. The westward expansion raised questions about governance, law enforcement, and the integration of new states into the Union. Additionally, there were fears of instability from competing interests, such as settlers, Native American tribes, and foreign entities, particularly in regions like the Oregon Territory and California. This concern also included the implications of slavery's extension into new territories, which heightened sectional tensions.