In From Peril to Partnership, using case studies of Colombia and Mexico, Paul Angelo evaluates the efficacy of U.S. security assistance and the necessary conditions and stakeholders in partner nations that facilitate success. The book answers why Plan Colombia achieved its objectives and why the Mérida Initiative underdelivered in Mexico. It goes beyond drug war theatrics and the “one-size-fits-all” approach to U.S.-led stabilization.  The CFR Fellows’ Book Launch series highlights new books by CFR fellows.