Many Americans believed the west was vast opne land in fact the land was populates with?

Many Americans in the 19th century viewed the West as vast, open land ripe for settlement and expansion. However, this land was already inhabited by diverse Native American tribes, each with their own cultures, traditions, and established territories. The westward expansion led to significant displacement and conflict as settlers encroached upon these lands. This complex history reveals the tension between the idea of manifest destiny and the realities of indigenous presence.