She is director of the WSU History Department's world history Ph.D. program, and she directs the undergraduate program in World Civilizations. She is the author of Martial Races: The Military, Race, and Masculinity in British Imperial Culture, 1857-1914 (2004), and is co-author, with Jerry Bentley and Herb Ziegler, of Traditions and Encounters: A Brief Global History (2007 and 2010). She is currently working on a monograph entitled Webs of Empire, which explores the connections between both colonial administrators and nationalists in French Indochina, British Malaya, and the Dutch East Indies from 1890 to 1937.