This event, which took place on the night of February 24-25, 1942, went down in history as the “Battle of Los Angeles” (The Battle of Los Angeles) or the “Great Los Angeles Air Raid“. The objective historical and military facts behind the event are as follows:
Background of the Event
This incident occurred just a few months after Japan‘s attack on Pearl Harbor. At that time, there was widespread fear of a major Japanese air or naval attack on the West Coast of the USA. In fact, just one day before this event (February 23, 1942), a Japanese submarine had shelled the Ellwood oil facility near Santa Barbara. Therefore, the stress levels of military personnel and civilians were at their peak.
What Happened?
- False Alarm: On the night connecting February 24 to February 25, air raid sirens sounded throughout the city and a complete blackout (power outage) was implemented after radars detected unidentified objects.
- Friendly Fire: Panicked American anti-aircraft units fired a total of more than 1,400 rounds towards the points where searchlight beams intersected in the sky.
- Casualties: No enemy aircraft were shot down in the incident because there were no enemies. The things that fell on the city and damaged buildings and vehicles were shrapnel from anti-aircraft shells fired by the U.S. military that fell to the ground. On the night of the incident, 5 civilians lost their lives, but the cause of these deaths was not bombardment; rather, they were traffic accidents due to the blackout and heart attacks due to panic.
What Was Actually in the Sky?
Following the incident, Secretary of the Navy Frank Knox immediately declared the event a “false alarm” and a situation caused by war stress (war nerves).
According to the comprehensive review conducted by the U.S. Air Force Historical Office in 1983, what happened was a chain reaction:
1. The initial radar contacts and visual alarms were determined to have been caused by meteorological balloons released into the sky that night.
2. After the balloons were fired upon, the smoke from exploding anti-aircraft shells in the air and the flashes of light from the explosions combined with the light from the searchlights.
3. This visual chaos caused highly stressed soldiers to fall into the illusion that they were seeing maneuvering “enemy aircraft” in the sky, fueling the fire.
On the night of the event, the detection of “objects” occurred primarily in two stages and in two different ways:
Radar Detection (Initial Warning)
The first detection that triggered the event was made via radars. On the night connecting February 24 to February 25, U.S. military early warning radar systems detected unidentified signals off the coast of Los Angeles. Following these radar contacts, a blackout (power outage) was immediately implemented in the city, and air raid sirens began to sound. Subsequent official investigations concluded that the radars had detected meteorological balloons released into the sky that night.
Visual Detection and Illusion (Crisis Escalation)
Following the radar alarm, massive anti-aircraft searchlights were turned on to scan the sky. The visual detection process at this point turned into a crisis of mass psychology and optical illusion:
* The searchlights first illuminated slow-moving meteorological balloons, and anti-aircraft batteries fired at these targets.
* As shells exploded in the air, dense smoke clouds formed in the sky.
* When the powerful lights of the searchlights hit these moving smoke clouds and the flashes of shrapnel exploding in the air, highly stressed soldiers visually “detected” what they thought were maneuvering “enemy aircraft” in the sky.