How was it a miracle? The Allied forces had superior air power, superior numbers, more highly motivated soldiers, not to mention the ability to read virtually all secret communications sent to and from the German military (at least ones sent by radio). Now, if the Warsaw Ghetto uprising had managed to bring down Hitler and end the war – that would be a miracle.
Of course, the Religious Zionists have somewhat lowered the “bar” for what is considered a miracle, since they attribute the Israeli victories over the Arabs to “miracles” . The secular Israelis, the Hareidim, i.e. the Satmar Rebbe, and most of the world attribute the Israeli victories to having better trained, better led and better armed soldiers.
A miracle is something the happens that violates the laws of nature. The creation of the world was a miracle. The splitting of the sea is a miracle.