The RQ-170 Sentinel drone lost over Iran is one of America's most valuable intelligence assets. It's unclear what brought it down - hostile fire or malfunction. Iran claims to have shot it down but has provided no photographs.
The Pentagon's embrace of drones in Iraq and Afghanistan has created demand for them among commanders on the ground, changing the face of situational awareness.
To cut the costly F-22 Raptor, he had to fire two top Air Force officials in his way.
The vehicle saved soldiers in Iraq. Now it's getting a $2 billion makeover for Afghanistan.
William Lynn's lobbyist experience may help him navigate the industry better, say some.
The Pentagon wants to send more F-16 fighters. Critics say the jets could threaten India.
Defense Secretary Robert Gates calls the aircraft procurement effort too flawed to continue.
The 'jeep of the future' is expected to be safer for troops and more fuel efficient.
Bush announced Thursday that Army tours will be cut to 12 months.