UN Secretary General António Guterres has called for a fundamental change in strategy by the Israeli military following the attack that killed seven international humanitarian aid workers in the Gaza Strip. He acknowledged that Israel had admitted its responsibility for the deaths and announced some disciplinary measures. “But the essential problem is not who made the mistakes, it is the military strategy and procedures in place that allow for those mistakes to multiply time and time again,” he said. “Fixing those failures requires independent investigations and meaningful and measurable chang…