Formed as the YPG's special forces in late 2014, the unit was organized to seek and destroyIslamic State of Iraq and the Levantsleeper cells in Rojava and to conduct operations behind enemy lines. The bravest and most dedicated fighters of the YPG and YPJ were chosen for the YAT, though at that point the unit still "existed in name only". This changed under the leadership of Ali Boutan who reformed YAT and began to put its members through training courses that were intended to emulate those of US and British special forces, while providing them with the best equipment the YPG/YPJ could afford. As cooperation between the YPG and the United States increased, YAT was further trained by US special forces and the CIA in designated compounds in Rojava and Jordan, while some YAT commanders were sent to Fort Bragg and Fort Campbell for in-depth training. Since its formation, YAT has carried out raids against ISIL targets, arrested ISIL sleeper cells, and stopped ISIL terrorist attacks. In September 2016, YAT captured two Sultan Murad Division fighters who had previously been filmed torturing YPG fighters in Jarabulus. In November 2016, Boutan was the target of an improvised explosive device in Qamishli, which exploded as his car passed by. Even though an American SOF medic attempted to save his life, he died of his wounds shortly after. The attack was believed to have been carried out by the Turkish National Intelligence Organization. The Turkish pro-government Anadolu Agency claimed that Boutan had been responsible for sending Kurdistan Workers' Party fighters into Turkey in order to conduct "terror operations". In April 2017, YAT aided US special forces in capturing parts of the Tabqa Dam from ISIL. During the battle, YAT commandos were equipped with US-supplied combat helmets, AN/PVS-7night vision devices, flashlights, and were armed with M4 carbines equipped with AN/PEQ-2 laser sights, holographic weapon sights, and STANAG magazines. On 21 June 2017, YAT captured five ISIL sleeper agents who were preparing a terrorist attack in Manbij. In January 2018, the Anti-Terror Units killed the mastermind of the July 2016 Qamishli bombings, Hisen Ayid el-Bilebil Ebu el-Walid, during operations inDeir ez-Zor Governorate. In the same month, they also captured around twenty foreign members of ISIL as they attempted to flee from Syria to Turkey. One of those arrested was Thomas Barnouin, a French jihadist who is considered to be one of the planners of the 2012 Toulouse attack and the November 2015 Paris attacks. YAT was involved in resisting Operation Olive Branch in early 2018, with some of its members reportedly killed by the Turkish Armed Forces. YAT reportedly prevented a terrorist attack in al-Hasakah on 20 February 2018, accusing pro-Turkish forces of being behind the planned car-bombing. On 1 September 2019, YAT captured Mohammed Remedan Eyd al-Talah, ISIL's chief financial officer, during a raid in ash-Shahil, Deir ez-Zor Governorate.
