Six-Day War
The Egyptians had 50 runways and about 960 attack aircraft, and the Israelis had 300 attack aircraft. Before the war, Israeli pilots and ground soldiers had trained to make possible for one aircraft to go into mission even four times a day; the Arab air forces could complete only one or two missions a day.  That let the Israeli Air Force start many attacks against Egypt on the first day of the war, destroy the Egyptian Air Force when it was still on the ground, and defeat the other Arab countries' air forces on the same day. The Arabs were so surprised that they wrongly believed that Israel had been helped by other countries, especially the United States.