[9][15] At the event on 29 January 2025 declaring the victory of the Syrian revolution, most factions of the armed opposition including Ansar al-Tawhid announced their dissolution and were incorporated into the newly formed Ministry of Defense.

The group was based in Sarmin and Nayrab in eastern Idlib, which has a strong ISIL presence, but was also active in opposition held parts of the Latakia Governorate.

Sarmini specifically recruited fighters who had remained neutral during the fighting between Ahrar al-Sham, HTS and Jund al-Aqsa to form Ansar al-Tawhid.

[18] After its formation the group coordinated with Hayat Tahrir al-Sham to attack a Syrian government held enclave in two predominantly Shiite villages outside of Idlib's city limits.

[citation needed] On 26 April 2018, Ansar al-Tawhid carried out a joint attack with Jaysh al-Izza and Hurras al-Din, which was another al-Qaeda aligned group that split off from Hayat Tahrir al-Sham and was led by al-Nusra's former head Sharia official, Sami al-Oraydi, targeting the Syrian military and allied paramilitary groups, during the fighting casualties were reported on both sides, as well as exchanges of artillery fire.

[23] After the attack, according to a pro-government source, the Syrian army claimed to have killed the group's deputy leader, a Chechen fighter named Khamza Shishani.

[2] In April 2019, the group claimed responsibility for an Inghimasi attack against pro-Assad forces in northern Hama, and released photos showing fighters carrying Kalashnikov rifles mounted with night vision scopes and wearing explosive belts.

[26] On 31 August 2019, the American-led CJTF-OIR coalition carried out missile attacks in Idlib targeting a meeting between Ansar al-Tawhid and Hurras al-Din reportedly killing a total of 40 members from both groups.

[33] On 23 December 2024, members of Ansar al-Tawhid were allegedly involved in burning a Christmas tree in Suqaylabiyah, a Christian-majority town in Hama province.