Hagel: Russia has withdrawn most troops from Ukraine border

(Maxim Zmeyev / Reuters)

Pullout promising, but still thousands of troops remain, the defense secretary says.

Edward Snowden’s full response to release of e-mail by U.S. officials

Edward Snowden’s full response to release of e-mail by U.S. officials

“Today’s release is incomplete,” Snowden said in response to questions from The Washington Post.

U.S. officials, Snowden clash over e-mail records

U.S. officials, Snowden clash over e-mail records

NSA, former intelligence contractor try to shape debate over whether he tried to blow whistle before leak.

Iranian hackers target U.S. officials on social media

Iranian hackers target U.S. officials on social media

Report reveals cyber-espionage campaign using sites such as Facebook and Twitter.

Kerry to Snowden: ‘man up,’ come back

Fugitive challenged after he says he tells NBC that he wants to go home

Army staff sergeant accused of numerous sex assaults

The alleged attacks occurred in Afghanistan and more recently at Fort Leonard Wood in Missouri.

States take steps to reduce sexual assault in prisons

Seven states face a 5 percent loss of federal grants for failing to adopt standards to combat sexual assault.

Obama outlines new postwar approach to foreign policy

Obama outlines new postwar approach to foreign policy

The president is asking Congress to support a fund to respond to “evolving terrorist threats” worldwide.

NSA Secrets

FILE - This June 6, 213 file photo shows the sign outside the National Security Agency (NSA) campus in Fort Meade, Md. The NSA has broken privacy rules or overstepped its legal authority thousands of times each year since Congress granted the intelligence agency broad new powers in 2008, The Washington Post reports. In one case, telephone calls from Washington were intercepted when the city's area code was confused with the dialing code for Egypt.  (AP Photo/Patrick Semansky, File)

Revelations and reaction

The National Security Agency has been forced to respond to unprecedented disclosures about its surveillance programs. Those programs have been assailed as a violation of privacy rights by critics and defended as critical to U.S. national security by intelligence officials. Explore our coverage.

Obama hails oncoming end of U.S. combat in Afghanistan

Obama hails oncoming end of U.S. combat in Afghanistan

Speech at West Point signals a shifting of security burden squarely to reconstituted Afghan forces.

Hezbollah operative wanted by FBI is killed in Syria

Hezbollah operative wanted by FBI is killed in Syria

Faouzi Mohamad Ayoub was indicted in Michigan in 2009 for planning an attack in Israel.

More U.S. missile defense in Pacific possible, admiral says

More U.S. missile defense in Pacific possible, admiral says

The admiral did not address whether the U.S. and South Korea may strike a deal to place a new battery there.

Pentagon to review its medical facilities

Hagel responds to the VA situation by ordering a look at the care provided to active-duty service members.