This article explains, among other crucial factors, how de-facto government structures can be used as a durability/resilience strategy by Non-State Armed Groups (NSAGs). In order to stay relevant, during and after the intrastate war, these groups seek to materialize various forms of policies, strategies, and operations. This study claims that in the shift to the re-territorialisation, armed groups that establish functional governance facilities are likely to live longer by providing essential needs of the civilians to garner popular support. In addition, it is claimed that by instrumentalizing this structure, armed groups also opt to show their political maturity, build reputation, change the third-party actors' attitudes and behaviors, and maintain relationships with their supporters. The study constructs a framework to better understand the socio-political governance system through a detailed case study analysis. The study compares the Syrian Salvation Government established by Hay'at Tahrir al-Sham (HTS) and the Autonomous Administration of North and East Syria established by the Democratic Union Party (PYD) with Somaliland, one of Africa's long-lasting de-facto governments.