U.S. forces are using maneuver warfare, fragmenting ammunition and teamwork with NATO allies to develop formidable responses to drone attacks in battle.
The Defense Department is using autonomous surface vessels to patrol the waters of the Rio Grande to detect drug smugglers and deter illegal crossings.
Firing triple rocket pods used to equip fighter aircraft and escorting Marine helicopters, drones are changing the way U.S. military attack helicopters can do battle.