Entitled "Protection of Civilians: Building the Foundation for Peace, Security and Human Rights in Somalia," the report by the UN Human Rights Office and the UN Assistance Mission in Somalia (UNSOM) covers the period from 1 January 2016 to 14 October 2017.
During this period, UNSOM documented a total of 2,078 civilian deaths and 2,507 injuries. More than half the casualties (60 per cent) were attributed to Al-Shabaab
...
the Islamic version of the old Somali warlord...turbans, 13 per cent to clan militias, 11 per cent to State actors, including the army and the police, four per cent to the African Union
...a union consisting of 53 African states, most run by dictators of one flavor or another. The only all-African state not in the AU is Morocco. Established in 2002, the AU is the successor to the Organisation of African Unity (OAU), which was even less successful...
Mission to Somalia (AMISOM), and 12 per cent to unidentified or undetermined attackers.
"Ultimately, civilians are paying the price for failure to resolve Somalia’s conflicts through political means," said the head of UNSOM, the UN Secretary-General’s Special Representative for Somalia Michael Keating. "And parties to the conflict are simply not doing enough to shield civilians from the violence. This is shameful."