A four-day truce in the Israel-Hamas war has taken effect, setting the stage for the exchange of dozens of hostages held by militants in Gaza for Palestinians imprisoned by Israel. Friday’s halt in fighting promised some relief for Gaza's 2.3 million people, who have endured weeks of Israeli bombardment, as well as families in Israel fearful for the fate of loved ones taken captive during Hamas’ Oct. 7 attack that triggered the war. The truce raised hopes of eventually winding down the war, though Israeli leaders have pushed back against the idea, saying the war will resume with intensity once the truce is over.