What do you mean the air defense alarm went off? Why did the 9 18 air defense alarm sound?

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What do you mean the air defense

What do you mean the air defense alarm went off? Why did the 9 18 air defense alarm sound?

You may be interested in establishing an auspicious day in 2020.

What do you mean the air defense alarm went off?

Air defense warning is an important part of urban air defense system. Usually used for disaster prediction and emergency notification in case of sudden major accidents in disaster relief, and used for civil air defense in wartime. It is the basic means for people's governments at all levels to carry out civil air defense command and organize people's evacuation. Don't panic after hearing the alarm sound signal, pay attention to the alarm signal. The purpose of trying to sound the air defense alarm is to enhance the general public's national defense concept and people's air defense awareness, make the alarm sound long, and at the same time familiarize the general public with the types and regulations of air defense alarm signals, and test the readiness of air defense alarm facilities and equipment.

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9 18 Why did the air defense alarm sound? In memory of the 9 18 incident.

At about 193 19 September 18 evening 10: 20, a detachment headed by Captain Kawamoto of the Liutiaohu detachment of the Japanese Kwantung Army Railway Guard was in Liutiao South, about 7.5 kilometers north of Fengtian (now Shenyang) and 800 meters away from the Northeast Army's Peking Camp. Three bodies of China, dressed as soldiers of the Northeast Army, were put on the scene as "evidence" that the Northeast Army destroyed the railway, falsely claiming that China's army destroyed the railway and attacked the Japanese defense team. This incident is called "September 18th Incident". Because the northeast of China was called Manchuria at that time, the Japanese called this incident "Manchuria Incident".

The "September 18th Incident" was a war of aggression against China deliberately created and launched by Japan in the northeast of China, and it was the beginning of Japanese imperialist aggression against China. It is the inevitable result of Japanese imperialism's long-term policy of aggression and expansion against China, and it is also an important step to turn China into its exclusive colony. At the same time, it marked the beginning of the world anti-fascist war and kicked off the eastern battlefield of World War II.

In order to remember this painful history, later generations in China formed the tradition of sounding an air defense alarm every September 18 to remind people not to forget blood and tears and national humiliation.

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Air defense alarm type

Air defense warning can be divided into early warning, air raid warning and disarming warning.

Early warning: sound for 36 seconds, stop for 24 seconds, repeat for 3 times as a cycle, and the time is 3 minutes. Citizens immediately stop all work, turn off the power supply at home, turn off the gas, put out the fire, close the doors and windows, carry valid documents, daily necessities and protective equipment, and quickly evacuate to nearby underground air defense bunkers, civil air defense projects and air-raid shelters.

Air raid alarm: sound for 6 seconds, stop for 6 seconds, repeat 15 times as a cycle, and the time is 3 minutes. Unable to enter underground air defense bunkers, civil air defense projects, and air-raid shelters, citizens used the terrain and landforms to escape nearby, kneeling on the ground with their hands on their heads.

Disarming the alarm: After a continuous ringing for 3 minutes, citizens can leave underground air defense bunkers, civil air defense projects and air-raid shelters and return to normal work.