The 1880 treaty was a typical federal policy and practice that failed to recognize Indian land ownership and functioned to transfer power to American hands. The Navy altered the Tlingit way of life in many ways. For example, the Navy told the Tlingit of American ownership of their former lands and introduced new rules around land ownership and usage. Prior to American confiscation of Tlingit lands, each clan owned and controlled specific geographical areas, and set guidelines for hunting and fishing. In 1881, Commander Henry Glass promoted the signing of a formal peace treaty between the Stikine Tlingit at Wrangell and the Xutsnoowú Tlingit at Angoon. This agreement contained language that regulated Tlingit hunting and fishing, and removed Tlingit jurisdiction and control over their former lands. The Navy also displaced Tlingit people from their traditional homeland, which violated the 1867 Treaty of Cession.