When Prime Minister Benjamin Netanyahu addressed the US Congress at the end of July, he named four Israeli soldiers who he said had been heroes since Hamas’s October 7 massacre. The first of the troops was young Israel Defense Forces officer 2nd Lt. Avichail Reuven, who ran 12 kilometers (8 miles) to the Gaza border on that Saturday to help fight off the terrorists. Reuven was at his parents’ home in the southern city of Kiryat Malachi on October 7 when he was awakened by sirens. He was still in the midst of officer training at the time, but after...