u003cpu003eSex, drugs, religion, and love are potent combinations in u003ciu003ela zonau003c/iu003e, a regulated prostitution zone in the city of Reynosa, across the border from Hidalgo, Texas. During the years 2008 and 2009, a time of intense drug violence, Sarah Luna met and built relationships with two kinds of migrants, women who moved from rural Mexico to Reynosa to become sex workers and American missionaries who moved from the United States to forge a fellowship with those workers.u003c/pu003eu003cpu003eLuna examines the entanglements, both intimate and financial, that define their lives. Using the concept of u003ciu003eobligaru003c/iu003e, she delves into the connections that tie sex workers to their families, their clients, their pimps, the missionaries, and the drug dealers—and to the guilt, power, and comfort of faith. u003ciu003eLove in the Drug Waru003c/iu003e scrutinizes not only u003ciu003ela zonau003c/iu003e and the people who work to survive there, but also Reynosa itself—including the influences of the United States—adding nuance and new understanding to the current US-Mexico border crisis.u003c/pu003e