Israel’s military launched a large-scale bombing campaign across the Gaza Strip early Tuesday, breaking the ceasefire with Hamas that has been in place since late January. At least 404 people have been killed and 562 injured, according to Gaza’s Health Ministry, making it one of the deadliest days of the 17-month war. Two Israeli officials, who spoke on the condition of anonymity to discuss sensitive information, said they saw the attacks, despite the deadly toll, as a tactic to force Hamas back to the negotiating table on terms acceptable to Israel — but they cautioned that Israel was ready to expand its operations at any time. The strikes were carried out amid mounting domestic pressure on Israeli Prime Minister Benjamin Netanyahu, with mass protests planned over his governance. “I cannot believe the war is back,” Ahmed, a father of three in Gaza City, said over the phone. “We don’t know where is safe.” The families of Israeli hostages held in Gaza said in a statement that “the Israeli government has chosen to give up on the hostages.” They called for a release deal to be negotiated instead of a return to fighting.