Complex sentence: One day later on January 11 Uli fell to Nigerian troops which ended the operation with a Nigerian victory and President Effiong ready to surrender to Nigerian Head of State Yakubu Gowon.
Split into simpler sentences: One day later on January 11 Uli fell to Nigerian troops. Which ended the operation with a Nigerian victory and President Effiong ready to surrender to Nigerian Head of State Yakubu Gowon.