The Battle Of LA : ufo probe

What really happened in the middle of the night on the February 25th 1942 in the sky above LA? No Japanese in sight. Artillery fired thousands of rounds into something in the air. The Press Said UFOS! The Military said Balloons! The People were denied any clear proof. Reported sightings of UFOs were escalating each year. The War took precedence but after it sightings rocketed! Then , Roswell. Keep'emPeeled