Ambas­sador Ricardo Luna is spend­ing the spring semes­ter as a vis­it­ing fel­low in the Pro­gram in Latin Amer­i­can Stud­ies. A career diplo­mat with over twenty years of expe­ri­ence as Peru­vian ambas­sador, he has served as Peru­vian ambas­sador to the United States, the United King­dom, and the United Nations. Before com­ing to Prince­ton, Ambas­sador Luna has taught at Har­vard, Brown, Colum­bia, and the Fletcher School.