Boko Haram in a video posted on Twitter on Wednesday, October 14, urged Somalia’s Al-Shabaab terror group to join them in pledging allegiance to the leader of the Islamic State group.

An unidentified armed Boko Haram fighter in the video, tells Al-Shabaab fighters that uniting “is of greater benefit to the struggle on the path of Islam” and will “help in defeating the infidels of the world.”