Ciudad Juárez, commonly referred as Juárez, is a city in Mexico, often considered the world's most dangerous city.
Mexican Cartel in New York City
With Wilson Fisk arrested every other major gang in New York City tried to grab up everything he had left. This included the Mexican Cartel. In order to improve their position in New York City they began bringing up heavy, militairy grade, munitions from Juárez, which they stored in a warehouse at the meatpacking district.
The Last Cartel Member
The Punisher continued to kill the members of the Mexican Cartel until only one was left. He fled to Juárez, where he received a hero's welcome. As the Cartel member was celebrating, he was shot and killed by the Punisher using a sniper rifle. The Punisher was across the border in El Paso, Texas at the time.