The New York Times reports the United States has, with the knowledge of the Mexican government, begun flying drones over its southern neighbor to “gather intelligence” on Mexico’s ongoing drug war.

Officials on both sides of the border also said that Mexico asked the United States to use its drones to help track suspects’ movements. The officials said that while Mexico had its own unmanned aerial vehicles, they did not have the range or high-resolution capabilities necessary for certain surveillance activities.

One American military official said the Pentagon had flown a number of flights over the past month using the Global Hawk drones — a spy plane that can fly higher than 60,000 feet and survey about 40,000 square miles of territory in a day. They cannot be readily seen by drug traffickers — or ordinary Mexicans — on the ground.

The RQ-4 Global Hawk is an autonomous vehicle flown by mouse-clicks and keystrokes, not by stick and rudder as the Predator and Reaper can be.  Arguably, its use in Mexico could provide useful lessons learned for “unconventional” combat scenarios, including the ongoing conflicts in Afghanistan and Iraq.