Affinity Bloc: 
                                    Horn of Africa
                                
                            
                            
                                Overview: 
                                    The Oromo, who have also been known as the Galla, are a large ethnic cluster of peoples living from northeastern Ethiopia to east-central Kenya, as well as between the borders of Sudan and Somalia. Their language is part of the Eastern Cushitic branch of the Afro-Asiatic linguistic family. They are divided into numerous dialect subgroups but differences in dialect do not prevent the various Oromo groups from understanding one another. Sunni Islam is the most widely practiced religion.
                                
                            
                            
                                
                                      -- James S. Olson, The Peoples of Africa. London: Greenwood Press (1996), p. 467
                                
                            
                            
                                Peoples within this cluster: 
                                    Ajuran; Ariaal Rendille; Arsi; Borana; Guji; Ittu; Kereyu; Orma; Oromo, Azebu; Oromo, Gabra; Oromo, Garre; Oromo, Jima; Oromo, Macha; Oromo, Tulama; Oromo, Wallega; Oromo, Wallo; Rendille; Sakuye; Selale; Warday
                                
                            
                            
                                Countries where they are found: 
                                    Canada; Egypt; Ethiopia; Kenya; Sudan; United States
                                
                            
                            
                                
                                
                                    People groups: 
                                        26
                                    
                                
                                
                                    Population: 
                                        46,838,200
                                    
                                
                                
                                    Unreached people groups: 
                                        23
                                    
                                
                                
                                    UPG population: 
                                        44,954,000
                                    
                                
                                
                                    Unengaged UPGs: 
                                        4
                                    
                                
                                
                                    UUPG population: 
                                        6,481,000
                                    
                                
                                
                                    Number of countries: 
                                        6