"Khaybar, Khaybar, ya yahud! Jaish Muhammad soufa yaʿoud!" (Arabic: خيبر خيبر يا يهود جيش محمد سوف يعود, lit. 'Khaybar, Khaybar, oh Jews! The army of Muhammad will return!') is an Arabic-language rallying slogan coined in the late 1980s and used by Hamas. It is chanted primarily at public anti-Israel demonstrations, but has also been invoked...