 Complete the following phrase:  On 3 March 2019, Khamza Shishani, the deputy emir of the group, was reportedly killed fighting alongside Ansar al-Tawhid in an attack against Syrian government troops in Hama Governorate. This operation did not officially involve Ajnad al-Kavkaz, however, and Khamza probably took part in it as individual fighter. In May 2019, pro-government forces reportedly attacked areas in northern Latakia as part of the Northwestern Syria offensive AprilAugust 2019 which had served as Ajnad al-Kavkaz stronghold. The Russian Reconciliation Center for Syria accused Ajnad al-Kavkaz and Tahrir al-Sham of violating the demilitarized zones of Idlib in August 2019. Three months later, Syrian government forces reportedly captured Misherfah in southern Idlib Governorate from a joint garrison of Ajnad al-Kavkaz and Tahrir al-Sham troops. In course of the 