Overview

• Both governments convened the new Mexico–U.S. Security Implementation Group in McAllen, Texas, and unveiled Mission Firewall to disrupt illicit firearms flows at the border.
• Measures include expanded ATF eTrace use and deployment of ballistic-imaging technology across Mexico’s 32 states, plus coordinated inspections and investigations.
• The U.S. State Department says it built a secure, first-of-its-kind platform to share data on suspicious shipments and packages to help identify drugs, weapons, precursors and illicit fuels.
• President Claudia Sheinbaum called the deal a first in securing U.S. operations on its own soil against southbound arms, citing U.S. recognition that about 75% of guns seized in Mexico originate there.
• Experts describe the plan as a continuation of prior cooperation and warn that results hinge on resources, technical capacity, judicial follow-through and how U.S. domestic enforcement is carried out, as Mexico notes more than 125 U.S. gun-trafficking probes since the start of the Trump administration.