One of the most fascinating but least remembered figures in modern American history, Major General Leonard Wood (1860-1927) was, with his close friend Theodore Roosevelt, an icon of U.S. imperialism as the nation evolved into a global power at the dawn of the twentieth century. The myriad of roles that Wood played in his extraordinary career offer a mirror image of the country's expansion from the urban Northeast to the western frontier to Latin America and the Far East. Boston surgeon,...