Palestinians visit the graves of relatives in the main cemetery of Beit Lahia in the northern Gaza Strip on May 13, 2021, the first day of the Eid al-Fitr holiday, which marks the end of the holy fasting month of Ramadan. The deadly exchange of fire between Palestinian militants in the Gaza Strip and the Israeli military has escalated significantly, with the UN fearing a "full-scale war". Israel has carried out hundreds of air strikes on Gaza, destroying three tower blocks and killing Hamas officials. Photo by Ashraf Amra