The Washington Post analyzed satellite imagery, airstrike data and U.N. damage assessments, and interviewed more than 20 aid workers, health-care providers, and experts in munitions and aerial warfare. The evidence shows that Israel has carried out its war in Gaza at a pace and level of devastation that likely exceeds any recent conflict, destroying more buildings, in far less time, than were destroyed during the Syrian regime’s battle for Aleppo from 2013 to 2016 and the U.S.-led campaign to defeat the Islamic State in Mosul, Iraq, and Raqqa, Syria, in 2017.