source: Calamada
actor1: Al Shabaab
actor2: Military Forces of Somalia (2017-)
location: Mogadishu - Heliwa
notes: 9 September 2018: On the evening of the 9th of September, a group of Al-Shabaab fighters attacked a military base manned by Somali National Army soldiers in Hilawaa district of the capital, sparking armed clashes. According to the source the attackers were able to take control of the base following the exchange of gunfire. No info on casualties.