It was quiet, grim work for a recovery team this week as it sifted through the rubble of Al-Shifa hospital in Gaza City. Shovels in hand, they unearthed what appeared to be a femur, a shoulder blade, the bones of a rib cage.

For two weeks in March, the Israeli military carried out a devastating raid at Al-Shifa, once the pillar of the Gazan medical system. The siege raised fears for the safety of hundreds of civilians trapped inside. 

Since the Israel Defense Forces withdrew last week,…