The 22,000 additional soldiers are expected to ease the transition from the war in Iraq to the one in Afghanistan.
Pfc. Bowe Bergdahl is only the second American service member taken hostage in Afghanistan since 2001. Soldier abductions have been rare in Iraq, too.
In a speech Thursday, the Defense secretary reiterated his determination to limit production of the F-22 stealth fighter. But lawmakers of both parties are fighting him.
A new study examined multiple deployments, enlistment policies, and exposure to intense combat as possible factors.
The head of the Missile Defense Agency suggests the plans could be altered, echoing President Obama's desire to compromise with Russia.
The service is putting more pilots behind a joystick to fly the unmanned planes crucial to today's wars.
As fighting intensifies in Afghanistan, July fatalities so far are higher than for all of June.
The deployment will include four brigades aimed at training and advising Iraqis – a nod to America's slow pullback from the front lines.
Command Sgt. Maj. Teresa King is first woman to head Army's only drill sergeant school.
Their numbers are small, but unit morale, cohesion, and discipline could be harmed.
The US government's official reason for shooting down the failed satellite last year doesn't fly, say some.
A Navy missle shot it down when it started to fall from the sky. But the cause of the satellite's failure is still unknown.
The vehicle saved soldiers in Iraq. Now it's getting a $2 billion makeover for Afghanistan.
Tracking North Korea's Kang Nam is not an extraordinary duty for American warships.
Mistakes in the way airstrikes were carried out in Farah Province last month may have led to the deaths of 26 Afghans, according to a Pentagon investigation released Friday.
The missile defense system deployed in Kauai in response to North Korea worries has been tested successfully several times, but never in combat.
The US is tracking the cargo carrier as it moves through the Pacific, but the interdiction called for by the UN will prove tricky.
He's at odds with the defense secretary's cap of 187 stealth jets.
They'll head to Afghanistan, where the fighting seems more in keeping with the Marines' style of focused, shorter missions.
Repeal of the policy barring homosexuals from serving openly in the military is now up to the Obama administration and Congress.