Treaty of Walla Walla

The Treaty of Walla Walla, signed in 1855, was an agreement between the U.S. government and several Native American tribes, mainly the Walla Walla, Cayuse, and Umatilla. It aimed to establish peaceful relations, define tribal territories, and secure land for settlement and agriculture. In exchange, tribes received certain reservations and promises of protection and supplies from the government. The treaty was part of broader efforts to regulate interactions and land use in the Oregon Territory, often leading to significant changes for Native communities and their traditional ways of life.