Hospitals in Gaza said at least 21 Palestinians were killed in Israeli strikes Wednesday on both sides of the yellow line established in last month’s ceasefire. The boundary splits the enclave in two, leaving the border zone under Israeli military control while the area beyond it is meant to serve as a safe zone.

U.S. and Israeli soldiers, foreign diplomats and aid workers are congregated in a warehouse in Israel to talk about the future of Gaza. One key group is missing: Palestinians.