After the release of the last living hostages and Palestinian prisoners and detainees, the tenuous ceasefire in Gaza was holding Tuesday while questions remain over other key parts of a U.S. plan for the region.

The long list of uncertainties includes when Hamas will return to Israel the rest of the bodies of the hostages believed to be dead in Gaza, and Israel’s insistence that a weakened Hamas disarm . The future governance of Gaza is also unclear.

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