Washington has made an unprecedented threat to cut $1 billion in funding.

An official said the Taliban carried out the attack, with help from insiders.

'We're in a crisis': US to cut $1B to Afghanistan to prod leaders and move peace process forward.

The U.S. military says it is pausing the movement of any new troops into Afghanistan and is quarantining 1,500 troops who recently arrived to avoid any spread of the coronavirus

An Afghan official says the government has postponed the release of 1,500 Taliban prisoners

The U.S. signed a peace deal with the Taliban.

The U.S. starts to withdraw troops from Afghanistan as peace negotiations face first delay as violence hits presidential inauguration.

The International Court has sanctioned an investigation into alleged war crimes, committed by all parties in the conflict in Afghanistan.

The U.S. and the militant group agreed to begin to end America's longest war.

The former Soviet Union marched into Afghanistan on Christmas Eve, 1979, claiming it was invited by the new Afghan communist leader and setting the country on a path of 40 years of seemingly endless wars and conflict

The United States and the Taliban have signed a historic peace agreement aimed at ending the 18-year war in Afghanistan, America's longest

The attack was to counter a Taliban assault on Afghan government forces.

Afghanistan's president says he will not free thousands of Taliban prisoners.

For many, the U.S. is long overdue in withdrawing its forces.

U.S. officials and experts say that hopes for ending America's longest war hinge on maintaining a weeklong fragile truce in Afghanistan that will be difficult to assess and fraught with pitfalls

ABC News’ Martha Raddatz details how this could lead to the departure of U.S forces from the country’s longest war.

A U.N. report says Afghanistan passed a grim milestone with more than 100,000 civilians killed or hurt in the last 10 years since the international body began documenting casualties in a war that has raged for 18 years

If the reduction holds, the US and Taliban will sign a deal on Feb. 29.

Could this deal lead to a withdrawal of American troops from Afghanistan?

The 21 killed were all from two families.

The Taliban say they have issued an ultimatum to Washington.

The Pentagon identified the two Americans killed as Sgt. 1st Class Javier Jaguar Gutierrez, 28, and Sgt. 1st Class Antonio Rey Rodriguez, 28.

U.S. troops were ambushed in a shootout between soldiers involved in joint military operations.

Afghanistan’s capital may seem an unlikely destination for snowboarders

The U.S. military has identified the two U.S. Air Force pilots killed in a plane crash in central Afghanistan.

Afghan officials say two militants pushing a handcart were killed in western Kabul when explosives in the cart detonated accidentally

International money pays for roughly 75% of all of Afghanistan’s costs.

Lt. Col. Paul Voss and Capt. Ryan Phaneuf died when their communications plane went down in a Taliban-controlled territory.

There was no official word on why the plane crashed or how many were on board. The Taliban claimed that it was shot down.

Children were among those injured in the attack.

A new study shows nearly half of all Afghans want U.S. and NATO troops to leave Afghanistan once a peace deal to end the country's 18-year war is signed with the Taliban

25 of those killed were in Pakistan.

Two U.S. soldiers were killed Saturday morning by an IED blast in Kandahar, Afghanistan. The Taliban have claimed credit for the explosion.

The American ambassador to Afghanistan is stepping down from his position on Monday, after serving in Kabul since December 2017.

The U.S. military says a U.S. Special Forces soldier who died in Afghanistan this week was seizing a Taliban weapons cache when he was killed

The attack targeted an army compound in the country's north.

The Pentagon has identified the U.S. service member who died in Afghanistan on Monday as Army Sgt. 1st Class Michael James Goble.

Plus: Crane collapse causes oil spill in the Galapagos Islands and baby Archie gets his close-up in a royal Christmas card.

Sgt. 1st Class Michael James Goble's death was the 20th combat fatality in Afghanistan this year, making 2019 the deadliest year for U.S. troops in that country in five years.

A 33-year-old soldier from New Jersey has been identified as the American service member killed Monday during combat in Afghanistan

A U.S. service member in Afghanistan was killed in action on Monday, according to the Department of Defense.

Women and children were among those who lost their lives.

The U.S. military says a suicide bombing has targeted a medical facility

A Taliban suicide car bomber hit a medical facility at Bagram military base in Afghanistan, killing one and wounding 65. Security operations are still ongoing.

A powerful suicide bomb went off near a gate at Bagram Air Base and was followed by gunfire.

The U.S. military said the crash is under investigation, but preliminary reports indicated enemy fire was not to blame, although the Taliban claimed responsibility.

Two U.S. service members killed in helicopter crash in Afghanistan, it is believed the helicopter did not go down as the result of enemy fire.

Two U.S. service members killed in helicopter crash in Afghanistan, it is believed the helicopter did not go down as the result of enemy fire.

Taliban say they freed 2 hostages, American and an Australian, in Afghanistan after release of 3 top insurgents

Three Taliban prisoners were released in a swap for American hostage Kevin King, as part of what the U.S. wants for part of a peace deal.