Ayman Al-Zawahiri proclaimed loyalty to the new head of the Taliban.
Officials said drone strikes were against individuals planning attacks on troops.
U.S. and Afghan officials say ISIS is now in three provinces in Afghanistan.
Republicans say the president paid too high a price for the soldier's return.
A desertion charge for Sgt. Bowe Bergdahl could prove embarrassing for the White House.
U.S. commander in Afghanistan says U.S. has two years to build capability of Afghan forces.
“Has President Obama not learned from his mistakes in Iraq?” Boehner's office says.
Army has been investigating whether solider kidnapped by Taliban had deserted.
House Foreign Affairs Committee Chairman Ed Royce (R-Calif.) said the Taliban attack on a Pakistani...
Retired Marine Gen. Allen is meeting with allies as the ISIS fight expands.
Executive branch must notify Congress before transferring Guantánamo Bay prisoners.
A vote could come as soon as Tuesday.
Mullah Akhtar Mohammad Mansour vowed his organization will fight on.
The retired general says Obama should reconsider his plan to withdraw most U.S. troops.
Lawmakers say the former detainees could "return to the fight" in days.
I support increased flexibility in the pace of drawdown of our troops," said Smith.
The Taliban is an "armed insurgency" focused on Afghanistan, says the White House.
The Pentagon on Monday said it is not changing the timeline for the withdrawal.
Feinstein and Grassley want a "comprehensive, multi-agency" strategy from White House.
"As terrible as it is, its not going to change our strategy," said a spokesman.
A report by the investigating officer is now being reviewed by commanders.
The increased fighting comes as U.S. troops begin their drawdown.
Rep. Hastings (D-Fla.) argued prisoners exchanged for Bergdahl unlikely to return to combat.
“This is not an intelligence failure, this is a policy failure,” Chairman Rogers said.