During World War II, from late February 24, 1942 to early February 25, 1942, a series of unidentified weather observations and anti-aircraft artillery fire over the city of Los Angeles, California, United States of America, known as the "Battle of Los Angeles".

In the early 1940s, there were numerous reports of sightings of unidentified flying objects (UFOs) across the United States. These sightings caused widespread public concern and led to military alarm.

On February 24, 1942, at approximately 3:15 a.m., observers at the 37th Coast Artillery Brigade radar station in Los Angeles reported detecting an unidentified object flying over the city. The object was described as large and slow-moving.

Within minutes, anti-aircraft guns were deployed and began firing at the object. More than 1,400 shells were fired, but the object was not damaged. The object eventually disappeared from radar, but was seen several more times during the night. The last sighting was reported at around 04:00.

The incident caused great panic among the population. The military initially claimed that the object was a Japanese reconnaissance plane, but this explanation was later denied.

The incident remains one of the best known and documented UFO sighting cases in history. There are many theories about what the object was, but the truth remains unknown.

Some common explanations for the Battle of Los Angeles are: Weather balloons: This is the most likely explanation, as weather balloons were widely used for military purposes during World War II. These balloons were of large size, often reaching up to 100 meters in diameter. Under some circumstances they could be characterized as UFOs.

Airplanes: Some people believe the object was a real airplane, but it was misidentified by radar operators. Asteroids: Asteroids can sometimes appear similar to UFOs, but are usually much faster than the object seen in Los Angeles. Hoax: Some people think that the Battle of Los Angeles is a lie, but there is no evidence to support this claim.

The Battle of Los Angeles remains a mystery to this day. There is no definitive explanation of what the object was and the event continues to be debated by UFO enthusiasts and historians alike.

A 2011 movie about the Battle of Los Angeles, "Battle: Los Angeles", a 2011 movie about the Battle of Los Angeles. There is also a museum in Los Angeles dedicated to the Battle of Los Angeles. The Battle of Los Angeles is one of the most popular UFO sighting cases in the world.