Related Rule
Somalia
Practice Relating to Rule 6. Civilians’ Loss of Protection from Attack
In 1998, an ICRC publication entitled “Spared from the Spear” recorded traditional Somali practice in warfare as follows: “[T]he man who, although belonging to one of the two groups involved in the conflict, did not himself take part in the fighting and did not carry any weapons … [was] generally spared. 
Somalia, Spared from the Spear, 1998, p. 41.
In 2011, in its comments on the concluding observations of the Human Rights Council concerning Somalia’s report, the Transitional Federal Government of Somalia referred to “Spared from the Spear” as its “own Geneva Conventions”:
In times of hostilities, the Biri-Ma-Geydo (Spared from the Spear), i.e. Somalia’s own “Geneva Conventions”[,] which existed long before the adoption of the Hague and Geneva Conventions, mitigated and regulated the conduct of clan hostilities and the treatment of immune groups. 
Somalia, Comments by the Transitional Federal Government of Somalia on the concluding observations of the Human Rights Council concerning the report of Somalia, submitted 21 September 2011, § 4.