Defense official discloses cyberattack

Now it is official: The most significant breach of U.S. military computers was caused by a flash drive inserted into a U.S. military laptop on a post in the Middle East in 2008.

Air base expansion plans reflect long-term investment in Afghanistan

Three $100 million air base expansions in southern and northern Afghanistan illustrate Pentagon plans to continue building multimillion-dollar facilities in that country to support increased U.S. military operations well into the future.

In nuclear negotiations, more women at the table for U.S.

When Rose Gottemoeller began negotiating the new nuclear treaty with Moscow, the U.S. diplomat got questions on the usual topics: missile defense, warheads, inspections.

New intelligence chief Clapper brings sense of humor to serious job

Let no one accuse the nation's new director of national intelligence of lacking a sense of humor.

CIA tapes of 9/11 detainee's interrogation don't show torture, official says

The interrogation of Ramzi Binalshibh, a key figure in the Sept. 11, 2001, attacks, was recorded several times while he was being questioned in Morocco by local intelligence officers, according to a U.S. official. The disclosure resolves a mystery over what are thought to be the only existing recordings from the CIA's secret detention program.

U.S., S. Korea launch joint military exercises amid threats from N. Korea

TOKYO -- Amid threats from North Korea, 86,000 U.S. and South Korean troops on Monday launched their latest round of joint military exercises, described by South Korean President Lee Myung-bak as a deterrent against war.

Gen. David Petraeus says Afghanistan war strategy 'fundamentally sound'

KABUL -- In his first six weeks as the top U.S. and NATO commander in Afghanistan, Gen. David H. Petraeus has seen insurgent attacks on coalition forces spike to record levels, violence metastasize to previously stable areas, and the country's president undercut anti-corruption units backed by Washington.

Petraeus: 'We're doing everything we can to achieve progress'

Excerpts from Washington Post associate editor Rajiv Chandrasekaran's interview of U.S. Army Gen. David H. Petraeus in his office at the NATO International Security Assistance Force headquarters in Kabul:

How to profit by betting against the crowd

Is there wisdom in crowds? Many professional money managers think so, although usually the wisdom comes from doing exactly the opposite of what the crowd does. And as a smart investor, you may want to learn about and start following some of these "sentiment" indicators.

Army analyst linked to WikiLeaks hailed as antiwar hero

For antiwar campaigners from Seattle to Iceland, a new name has become a byword for anti-establishment heroism: Army Pfc. Bradley E. Manning.

Fearing unrest, Pakistan seeks more U.S. flood aid

Pakistan wants the United States to supply immediately dozens more helicopters and significantly more money and supplies to help deal with the widespread flooding that has affected at least 14 million people there, senior Pakistani officials said Monday.