An Israel-Hamas ceasefire deal expected to take effect on Sunday has sparked hope for life-saving aid to reach Palestinians, but aid agencies warn of obstacles from destroyed infrastructure, massive need and collapsed law and order.Announcing the truce, United States President Joe Biden said on Wednesday it would “surge much needed humanitarian assistance to Palestinian civilians.”The United Nations’ humanitarian chief Tom Fletcher called it “a moment of hope and opportunity” but said “we should be under no illusions how tough it will still be to get support to survivors.”On the ground in the territory, where nearly all 2.4 million people have been displaced at least once, aid workers worry nothing will be enough to meet the need.For the latest updates on the Israel-Palestine conflict, visit our dedicated page.“Everything has been destroyed. Children are on the streets. You can’t pinpoint just one priority,” Doctors Without Borders (MSF) coordinator Amande Bazerolle told AFP by phone