President Donald Trump ordered the construction of a new missile defense system covering the United States, the latest move ...

By achieving a top speed of Mach 1.1, Boom Supersonic has broken records and is on course to revive supersonic passenger ...

Boom Supersonic's XB-1 demonstrator plane just went supersonic in the skies over California's Mojave Desert, making it the ...

Today, the Doomsday Clock was set to 89 seconds to midnight, signaling that experts fear we are dangerously close to a global ...

All North Korean recruits are taught a song that includes a verse about saving their last bullet for themselves to avoid capture, one former soldier told NBC News.

Large swaths of land in Southeast Asia are littered with unexploded bombs dropped by American forces during the Vietnam War.

That’s because the Pentagon needed a plane that could fly low and hover for protracted periods over a battlefield—a niche that jets couldn’t fill. In other words, the A-1 was America’s original Close ...

In just a week, the president has floated financial reprisals for Mexico, Canada, Russia, Denmark and Colombia. The ...

A small, hardworking contingent of elected officials is indeed trying to roll back the nuclear arms race and make it harder ...

A New Castle man was one of 58 Pennsylvania soldiers to die 81 years ago Sunday during an Allied invasion of Italy in World ...

Rwanda-backed rebels claimed they captured eastern Congo’s largest city, Goma, early Monday, as the United Nations described a mass panic among its 2 million people and Congo’s ...