منطقة عفرين
The Sham Legion also took part in the Turkish military intervention in Afrin in 2018, with its chief commander Major Yasser Abdul Rahim serving as a "key member" of the campaign's Olive Branch Operations' Room. Rahim stated that the operation against the Syrian Democratic Forces in the Afrin District intended to "liberate the area from all kinds of terrorism and protect civilians, Arabs and Kurds" and that the TFSA would attempt to avoid civilian casualties. On 7 February 2018, Rahim was dismissed from his position as commander without explanation, and was replaced by Khaldun Mador ("Abu Jamil"). Khaldun, reportedly the third highest-ranking commander of the Sham Legion. Rahim went on to join the Glory Corps. In May 2018, along with 10 other rebel groups in northwestern Syria, the Sham Legion formed the National Front for Liberation, which was officially announced on 28 May. Colonel Fadlallah al-Haji, commander of the Sham Legion, was appointed as the overall commander of the formation. On 4 June, the Martyrs of Islam Brigade, also part of the NFL, joined the Sham Legion.