Video purports to show massacre of Nigerian troops and civilians in Gwoza, a town in northeastern Nigeria. It is there that as many as 1000 Christians were killed: a modern record. WARNING: graphic video.
During WW2, Nazi leaders encouraged the emergence of Arab nationalism that was paired with anti-Semitism. Arabs served in Hitler's armies, and Iraqi Arabs - with the blessing of the leading Muslim cleric of the region - engaged in a genocide of Jews.