This certificate verifies that Víctor Maestre Ramírez successfully completed and passed the online course "Central Challenges of American National Security, Strategy and the Press" offered through HarvardX, an online learning initiative of Harvard University through edX. The course was taught by David E. Sanger, Adjunct Lecturer in Public Policy at Harvard Kennedy School of Government, Derek Reveron, Professor of National Security Affairs and EMC Informationist Chair at the U.S. Naval War College, and Graham T. Allison, Douglas Dillon Professor of Government and Director of the Belfer Center for Science and International Affairs at Harvard Kennedy School of Government.