Fort Campbell troops will be deployed to the US-Mexico border. This is the fourth in 16 months that Fort Campbell soldiers ...

Add Yahoo as a preferred source to see more of our stories on Google. Military leaders say drones from Mexican cartels regularly fly over US troops at the US-Mexico border. "Hundreds" of counter-drone ...

The latest border security deployment sends 500 Texas National Guard troops to El Paso to assist U.S. Border Patrol.

Add Yahoo as a preferred source to see more of our stories on Google. U.S. Border Patrol agents returned fire after shots were fired at them from Mexico along the Rio Grande in the San Elizario area ...

The US military is using the southern border as a testing ground for counter-drone technology as cartel surveillance flights increasingly threaten troops and federal law enforcement officials ...