North American competitiveness no longer depends on the USMCA alone. It is decided at border crossings, customs systems, logistics corridors and border cities. The border between Mexico and the United States is no longer a periphery. It is the infrastructure through which North America tests its ability to produce, supply itself and protect itself. At every crossing, a supply chain either gains time, loses money or becomes less reliable. On July 1, 2026, the United States did