Ben Wolfgang

The Army has selected five companies to build and operate nuclear microreactors on five military installations across the country, the service announced Wednesday.

The Trump administration’s Golden Dome, a multilayer missile defense system designed to thwart a mass missile attack on the U.S., will need more than money and time to work. It is going to need power and lots of it.

The U.S. Army will move at “the speed of business,” not the speed of government, acting Army Secretary Adam R. Telle told a major military conference Monday as he doubled down on the Trump administration’s ambitious plan to fundamentally overhaul how America’s largest military service innovates and operates in the 21st century.

Vital U.S. Army weapons and communications tools are undergirded by lightning software, crucial in keeping the nation’s largest military service’s systems from becoming obsolete on modern battlefields, according to the Army’s chief technology officer.

A mysterious Russian satellite is closing in on a U.S.-Finnish radar satellite that supports the Ukrainian military, according to a new analysis, raising fears that Moscow may be poised to launch an attack in orbit and kick off an era of kinetic space warfare.

Ukraine hit a key oil export terminal in St. Petersburg and targeted a major data center in Leningrad early Sunday in one of its largest-ever aerial assaults on Russia.

Space analysts and national security insiders believe the Russian satellite Cosmos 2612 likely intended to attack a key U.S. radar satellite in what would have been the first instance of warfare in orbit, but that the Kremlin may have called off the operation at the 11th hour.

The numbers look daunting, but U.S. Army leaders say they know exactly what’s expected of them if a full-blown war breaks out in Europe.

The Navy announced this week that it picked California-based company Radiant Industries to deliver a cutting-edge nuclear microreactor to a naval...

What do “air superiority” and “air dominance” really mean in the age of drones?