<prompt> Pedzisa mutsara unotevera: Operation Turus izita remitemo rebasa remauto eBritain rokubatsira Nigeria munguva ye  <response>: Vapanduki veBoko Haram. Yakatangwa muna Kubvumbi 2014 neMutungamiri weHurumende David Cameron mukupindura kubiwa kwevasikana vechikoro veChibok. 