<prompt> Qedela umusho olandelayo: Operation Turus yigama eliyimfihlo lomsebenzi wamasosha aseBrithani wokusiza iNigeria ngesikhathi  <response>: Ukuvukela kukaBoko Haram. Lolu hlelo lwasungulwa ngo-Ephreli 2014 nguNdunankulu uDavid Cameron njengempendulo yokuthunjwa kwamantombazane aseChibok. 