The Matías Romero Institute dedicates the issue 126th issue of the Revista Mexicana de Política Exterior to reflection on the scope of Mexico’s participation in the Group of Twenty. This exceptional publication will give students, academics, diplomats and Mexican society in general greater insight into the challenges Mexico and the G20 face year-in, year-out as they strive to foster dialogue, cooperation and consensus between our countries. The G20 has and will continue to be a premier forum for Mexican foreign policy.