Complex sentence: Gedi's father was an officer in the military and in 1978 joined the Somali National Security Service (NSS) under the reign of Siad Barre at the rank of of Colonel.
Split into simpler sentences: Gedi's father was a Colonel in the Somali National Security Service (NSS) under the reign of Siad Barre. Farther was a military officer long time and later joined the National Security Service (NSS) in 1978 with the rank of colonel.