Palestinians carry banners with pictures of Palestinian martyrs, on the anniversary of the Palestinian martyr's day, at a cemetery in Nuseirat camp in the middle of the Gaza Strip, on January 7, 2020. In January 1965, Ahmad Musa, a Fedayeen fighter with the Fatah faction, retreated back into Jordan after a sabotage raid on an Israeli water tunnel near the Palestinian village of Eilaboun in the occupied Galilee.In the Palestinian national and diasporic commemoration of martyrs, Musa became the first symbol of sacrifice. He was soon joined by many more. Photo by Ashraf Amra