Battered by Pakistani military operations and U.S. drone strikes, the once-formidable Pakistani Taliban has splintered into more than 100 smaller factions, weakened and running short of cash, according to security officials, analysts and tribesmen from the insurgent heartland.

The group, allied with al-Qaida and based in the northwest close to the Afghan border, has been behind much of the violence tearing apart Pakistan over the last 4 1/2 years. Known as the Tehrik-e-Taliban, or TTP, the Taliban want to oust the U.S.-backed government and install a hard-line Islamist regime. They also have international ambitions and trained the Pakistani-American who tried to detonate a car bomb in New York City's Times Square in 2010.

"Today, the command structure of the TTP is splintered, weak and divided and they are running out of money," said Mansur Mahsud, a senior researcher at the FATA (Federally Administered Tribal Area) Research Center.

"In the bigger picture, this helps the army and the government because the Taliban are now divided."

The first signs of cracks within the Pakistani Taliban appeared after its leader, Baitullah Mehsud, was killed in a drone strike in August 2009, Mahsud said. Since then, the group has steadily deteriorated.

Set up in 2007, the Pakistani Taliban is an umbrella organisation created to represent roughly 40 insurgent groups in the tribal belt plus al-Qaida-linked groups headquartered in Pakistan's eastern Punjab province.

"In the different areas, leaders are making their own peace talks with the government," Mahsud added. "It could help the Pakistani government and military separate more leaders from the TTP and more foot soldiers from their commanders."

The two biggest factors hammering away at the Taliban's unity are U.S. drone strikes and Pakistani army operations in the tribal region.

Turf wars have flared as militants fleeing the Pakistani military operations have moved into territory controlled by other militants, sometimes sparking clashes between groups. And as leaders have been killed either by drones or the Pakistani army, lieutenants have fought among themselves over who will replace them.

"The disintegration ... has accelerated with the Pakistan military operation in South Waziristan and the drone attacks by the United States in North Waziristan," Mahsud said, referring to the two tribal agencies that are the heartland of the Pakistani Taliban.

Another factor is the divide-and-conquer strategy Pakistan's military has long employed in its dealings with militants. Commanders have broken away from the TTP and set up their own factions, weakening the organisation.

Battles have broken out among the breakaway factions, and in one particularly remote tribal region the TTP was thrown out. These growing signs of fissures among the disparate groups that make up the Pakistani Taliban indicate the military's strategy could be paying off.

That would explain the mixed signals this month coming out of the tribal belt, where some militants are mulling the idea of peace talks with the government, others are offering to stop fighting and still others are disavowing both peace and a cease-fire. It might also explain a steady decline in suicide attacks in Pakistan, according to the privately run Pak Institute for Peace Studies.

The U.S. is eager to see some benefits in neighboring Afghanistan, where its troops have come under attack from militants based across the border in Pakistan.

NATO forces in Afghanistan are trying to break the back of the Afghan insurgency before the end of the U.S.-led coalition's combat mission in 2014.

There is no evidence so far that fissures within the militant structure in Pakistan are helping NATO and U.S. forces.

The deadly Haqqani network, which has bases both in Pakistan and Afghanistan and is affiliated with al-Qaida, is one of the most lethal threats to coalition troops. It has long found safe haven in Pakistan's tribal belt and has used the Pakistani Taliban as a source of recruits. Senior U.S. officials say the Haqqanis also receive support from Pakistan's army and intelligence agency, a charge Islamabad denies.

Analysts predict that over time, however, the internecine feuding in the Pakistani Taliban will take a toll on militants fighting in Afghanistan, making it increasingly difficult for them to find recruits and restricting territory available to them.

Pakistan's military has rebuffed appeals from Washington to take on all of the insurgent groups in the tribal region, saying it has neither the men nor the weapons to do so. Instead, Islamabad has pushed its divide-and-conquer approach, which is gaining some traction in the United States, according to two Western officials in the region.

The officials say the success of this approach will be measured in Washington by its ability to curb Haqqani network attacks in Afghanistan. The officials requested to remain anonymous in order to speak candidly.

Cooperation between the U.S. and Pakistan suffered a serious setback a week ago when NATO aircraft killed 24 Pakistani soldiers at two border posts. The November 26 incident seems certain to blunt any prospect of Pakistan taking direct steps to curb the Haqqani network, analysts say.