US air force

Even the most sophisticated air defence systems will struggle to detect the B-21 in the sky, says defence secretary

Virgin Galactic plans for two further test flights of the spaceplane in months ahead

This mission will conduct experiments to study space effects on materials and seeds used to grow food

The total cost of the F-35 programme is estimated at $1.5 trillion

Barbara Barrett is a former ambassador and businesswoman from Arizona

Pilot ejected before jet crashed into warehouse just outside March Air Reserve Base in Southern California

Georgia Air National Guard official confirm five people dead and four missing

Chinese Defence Ministry spokesperson Wu Qian say the Chinese armed forces had the situation under control

After troop pull back all eyes on Afghanistan

CHAMP Is a high-powered microwave weapon that can be delivered on an air-launched cruise missile

Trump’s South Asia strategy included promises to expand authority for US forces to target militants in Afghanistan

The Pentagon wants to replace all three legs of the triad, at a cost of $1 trillion

Air Force's F-35A is one of three variants of the aircraft, designed to conduct conventional landings and take offs

Russia has denied the action was reckless or provocative

Prosecutors say Pugh immersed himself in violent IS propaganda before buying a one-way flight from Egypt to Turkey

The deployment would include pilots, mechanics, spare parts and equipment

US military has already taken delivery of dozens of planes but new batches continue to be refined and tested