Prisoner release threatens U.S.-Afghan relations

(Dar Yasin / AP)

72 high-profile detainees are to be freed in coming days, Karzai says, despite U.S. objections.

Syrian rebels step up fight against al-Qaeda-linked group

Syrian rebels step up fight against al-Qaeda-linked group

Militants affiliated with the radical Islamist group are being driven from strongholds in northern Syria.

Kerry: U.S. won’t send troops to Iraq to battle al-Qaeda

Kerry: U.S. won’t send troops to Iraq to battle al-Qaeda

Dozens are reported killed as government forces fight to take back Fallujah and Ramadi from militants.

Rebels battle al-Qaeda-affiliated fighters in northern Syria

Rebels battle al-Qaeda-affiliated fighters in northern Syria

Extremists who have been staging attacks from Baghdad to Beirut face biggest challenge yet.

More U.S. Embassy staff to leave South Sudan

More U.S. Embassy staff to leave South Sudan

The drawdown underscores U.S. concerns about the deteriorating security situation.

Afghan plan to release prisoners said to risk U.S. ‘backlash’

Afghan plan to release prisoners said to risk U.S. ‘backlash’

The Afghan government is weighing the release of 88 prisoners who killed dozens of U.S. and NATO troops.

Beirut blast kills former ambassador to U.S., 4 others

Beirut blast kills former ambassador to U.S., 4 others

The huge explosion underscores Lebanon’s growing instability in the face of Syria’s bloody civil war.

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Tracking America’s drone war

Armed drones have become a vital element of U.S. national security policy. This project documents ongoing drone strikes in Pakistan, Yemen and Somalia.

Obama awards Army captain Medal of Honor

Capt. William Swenson was awarded the honor for his bravery during the Battle of Ganjgal, one of the deadliest battles in the Afghan war.

U.S. drone network in the Middle East and Africa

As the U.S. military withdraws from Afghanistan, the Pentagon is shifting its fleet of drones to other global hot spots.

Chemical weapons stockpiles around the world

Russia and the U.S. rank highest in the number of declared chemical weapons. See who else has declared chemical weapons under the Chemical Weapons Convention.

Who has signed the Chemical Weapons Convention

After Syria signed the treaty, it became the 190th country to join the international convention outlawing chemical weapons.