var vtn_player_type = "vp";var ven_video_key="NjIwNTMyfHwxNDcxfHwwfHx8fHx8";var ven_width="660";var ven_height="409";Boko Haram leader Abubakar Shekau vows in a new video that the group will defeat the regional armed forces. Duration: 01:59
