Business Insider got access to a NATO AWACS flight for an eight-hour surveillance mission over Eastern Europe.

The S-400 is one of the world’s most advanced long-range surface-to-air missile systems, capable of detecting and destroying ...

Polish and Swedish military aircraft were scrambled in response to a large Russian drone and missile attack launched across ...

Agents of the Ukrainian partisan movement Atesh have identified a secret Russian radar company stationed in temporarily ...

US President Donald Trump said he ordered two nuclear submarines to "appropriate regions" after what he called "foolish and ...

Business Insider flew aboard the decades-old aircraft during a recent surveillance mission. NATO plans to replace the E-3 in ...

Trump says Putin has ‘10 or 12 days’ to reach a ceasefire deal - The US President said he is ‘disappointed’ in Putin and the ...

It is unclear whether Iran had purchased the system or was merely testing it as part of Russia’s promotional strategy ...

Ukrainian officials say the drones used in Thursday’s deadly strike were faster, harder to detect, and may signal a new phase ...

Part of the U.S. Military contingent at this year’s EAA AirVenture event, the local Wisconsin Air National Guard showed off a ...