The UN children's charity UNICEF called on Friday for all crossings for food aid into war-shattered Gaza to be opened, saying deaths among children could rise given their immune systems have been badly compromised. "The situation is critical. We risk seeing a massive spike in child death, not only neonatal, but also infants, given their immune systems are more compromised than ever before," said UNICEF spokesperson Ricardo Pires. Israeli troops began pulling back from some parts of the Palestinian territory on Friday under a ceasefire deal with Hamas, in the first phase of an initiative by US President Donald Trump to end the two-year-old war. The United Nations plans to ramp up its delivery of humanitarian aid to Gaza, where...