Groups like the Islamic State of Chorasan could oppose the negotiations and try to attract disgruntled Taliban. The insurgency is not a homogeneous organization. These include other insurgent groups, drug trafficking organizations, tribes and militias, some of whom may strongly oppose a peace agreement. Even successful peace agreements have been threatened by spoilers who refuse to participate and feel more engaged in violence to achieve their goals, such as the Real Irish Republican Army in Northern Ireland and the National Liberation Army in Colombia. Both carried out attacks before, during and after the peace accords. 1) Stopping attacks on the United States: The Taliban has given a guarantee that it will “prevent the use of Afghan soil by any group or individual against the security of the United States and its allies.” On February 29, 2020, the United States and the Taliban signed a peace agreement in Doha, Qatar, after more than 18 years of conflict. The agreement contained four main provisions (State Department, February 29, 2020): a pacifist movement emerged in Afghanistan in 2018, especially after a peace march that the Afghan media described as a “Helmand peace convoy”.   The peace march was a reaction to a car bomb on 23 March in Lashkar Gah, which killed 14 people. Protesters travelled several hundred kilometres from Lashkar Gah in Helmand province through the Taliban-held area to Kabul. It was there that they met Ghani and held sit-in-protests in front of the United Nations Assistance Mission in Afghanistan and near embassies.  Their efforts have inspired other movements in other parts of Afghanistan.  The Taliban may also have trouble convincing the skeptics of quetta Shura – the Taliban leadership council or Rahbari Shura – such as Abdul Qayyum Zakir, Mullah Ibrahim Sadar, Mullah Yaqub and even Chief Mawlawi Haibatullah Akhundzada. Lower Taliban commanders or partner groups such as Al Qaeda could also oppose an agreement or oppose how it could be implemented.
According to a UN assessment, Al Qaeda leaders conducted shuttle diplomacy to influence senior Taliban leaders and field commanders, to oppose peace talks – and even commit to increasing Al Qaeda`s financial support to the Taliban. The agreement sets out four objectives, the last two depending on the status of the first two: Al Qaeda, an international terrorist network, was a refugee in Afghanistan on the condition that it did not irritate the United States, but Osama bin Laden rejected the agreement in 1998 when he orchestrated bombings against U.S. embassies in East Africa. The episode was indicative of the tensions that have on the day between the two groups. The Taliban were basically parochists, while Al Qaeda was targeting global jihad.  The United States has reached an agreement with the Taliban, but significant challenges remain, such as political power-sharing, the role of Islam and women`s rights in achieving intra-Afghan peace. The issue of prisoner exchange is the immediate obstacle. As part of the U.S. agreement, the Kabul government was to release 5,000 Taliban prisoners in exchange for the release of 1,000 Taliban. After the gradual release of most of the prisoners, the two sides found themselves in a deadlock over the issue of the last 320, with President Ashraf Ghani saying they were dangerous and abhorrent.