Why did King George III forbid colonists from setting in the Ohio river valley after it was gained by Britain from French?

King George III forbade colonists from settling in the Ohio River Valley after Britain gained control of the territory from France to prevent conflicts with Native American tribes already residing there. The Proclamation of 1763 aimed to stabilize relations with Indigenous peoples and reduce the potential for violence on the frontier. Additionally, it was a way to regulate westward expansion and maintain British authority over colonial development, ensuring that settlements did not undermine British interests in the region.