The federal government has picked two companies to replace 612 radar systems nationwide that date back to the 1980s as part of a multibillion-dollar overhaul of the nation's air traffic control system ...

In the face of constant Russian advances in airborne weapons and overwhelming swarms of drones and missiles, Ukraine is racing to stay ahead of the curve. US-made Patriot missile systems have shown ...

Iranians protested and many businesses closed up shop for a second day on December 29 as the country's currency reached a record low on foreign exchange markets. Riot police were reported to be using ...