The SpaceX billionaire may finally unlock the US dream of a space-based missile defence system ...

The Army was one of 28 government agencies authorized to fly helicopters near Ronald Reagan National Airport before its Black ...

It was disclosed that the helicopter had turned off its Automatic Dependent Surveillance-Broadcast (ADS-B) system, a sophisticated tracking technology designed to provide real-tim ...

Robert Gates noted that early during the Reagan administration, there was a buildup in U.S. defenses with the additions of tanks, planes, ships, submarines, combat vehicles and nuclear weapons.

U.S. Marine and civilian speakers praised President Ronald Reagan for his commitment to peace through strength Thursday ...

The U.S. Army helicopter that collided with an passenger jet near Washington, D.C., had an advanced surveillance system ...

Investigators trying to determine what caused last week’s deadly midair collision between a US military Black Hawk helicopter ...