In this powerpoint lecture presentation, Robert A. Williams, Jr., E. Thomas Sullivan Professor of Law and and Faculty Co-chair, Indigenous Peoples Law and Policy Program at the University of Arizona Rogers College of Law, discusses “The Legal Framework for Native Nation Building” at a recent University of Arizona Native Nations Institute (NNI) Executive Education for Tribal Leaders Workshop. Professor Williams, who is also a Faculty Associate of NNI, provides an overview of the U.S. government's centuries-long assault on tribal sovereignty -- in particular the ability of Native Nations to make and enforce law -- and stresses the importance of Native Nations systematically building their capacity to exercise jurisdiction over their own land and affairs in what he calls "the 21st century nation-building era."