MILAN — Not far from the front lines, under dense vegetation that obstructs satellite signals, a military nano-sized drone is conducting a reconnaissance mission. From a safe distance, the operator utters a voice command that an artificial intelligence-based software turns into drone language, causing the tiny robot to change course: “Sharp turn left and head straight.” The scenario is…

WASHINGTON — The U.S. Army is scrapping its current upgrade plans for the Abrams main battle tank and pursuing a more significant modernization effort to increase its mobility and survivability on the battlefield, the service announced in a statement Wednesday. The Army will end its M1A2 System Enhancement Package version 4 program, and instead develop the M1E3 Abrams focused on challenges the…