For Native Americans, Pontiac's War demonstrated the possibilities of cooperation between tribes for resisting colonial expansion. Although the conflict divided tribes and villages, the war also saw the first extensive multi-tribal resistance to European colonization in North America, and was the first war between Europeans and Native North Americans that did not end in complete defeat for the Native Americans. The Proclamation of 1763 ultimately did not prevent British colonists and land speculators from expanding westward, and so Native Americans found it necessary to form new resistance movements. Beginning with conferences hosted by Shawnees in 1767, in the following decades leaders such as Joseph Brant, Alexander McGillivray, Blue Jacket, and Tecumseh would attempt to forge confederacies that would revive the resistance efforts of Pontiac's War.