During the early years of the U.S. Republic, its vital southwestern quadrant-encompassing the modern-day states between South Carolina and Louisiana-experienced nearly unceasing conflict. In The Old Southwest, 1795-1830: Frontiers in Conflict, historians Thomas D. Clark and John D. W. Guice analyze the many disputes that resulted when the United States pushed aside a hundred thousand Indians and overtook the final vestiges of Spanish, French, and...