The U.S. Army is testing a new 30-millimeter explosive round at Yuma Proving Ground in Arizona that is designed to take out ...

The U.S. Army is testing a new 30-millimeter round designed to help attack helicopters counter the growing threat posed by enemy drones on the battlefield.

Yuma Test Center at U.S. Army Yuma Proving Ground recently tested a new 30-mm Aviation Proximity Explosive (APEX) round primarily developed for firing ...

Add Yahoo as a preferred source to see more of our stories on Google. Soldier takes cover behind a building during training exercise. - Wikimedia Commons/Cpl David A. Perez, cropped and resized, ...

Full pews at the U.S. Army Yuma Proving Ground (YPG) Halo Chapel greeted Army Ranger Hall of Fame inductee Jeff Struecker as he made a highly anticipated presentation the evening of June 4. Before ...

YUMA — A military training facility could expand its boundaries by up to 500,000 acres, potentially crossing into several protected wilderness areas, authorities said. The U.S. Army has been looking ...

Deep in the Arizona desert, beyond the Yuma Proving Grounds and the Kofa National Wildlife Refuge, sits the old mining town of Castle Dome. The town began in 1864 after silver-bearing galena was ...

YUMA PROVING GROUND — Pulling up to the newly completed General Motors test complex for the grand opening Wednesday, it was clear this was Chevrolet country. A line of more than a dozen Corvettes led ...