Air defense is what to defend against, and what is the technical defense of physical defense and wha

Air defence. Measures and actions to combat enemy aircraft from the air or from outer space. This includes the establishment of various air defense systems, the conduct of anti-aerial reconnaissance and anti-air raid operations, the implementation of anti-air concealment, camouflage, protection, and elimination of the consequences of air raids.

Modern air defense is mainly to defend against enemy aircraft, cruise missiles, ballistic missiles, and military spacecraft. It defends the security of the country's airspace in peacetime, covers the country's transition to a wartime system in wartime, defends important national objectives, guarantees the freedom of movement of the armed forces, and protects the safety of the people. Air defense has a significant impact on the course and outcome of a war and has a strategic importance.

Air defense is divided into active air defense and passive air defense according to different means. The use of air defense weapons and equipment such as aircraft, anti-aircraft guns, ground-to-air missiles, blocking balloons, and electronic countermeasures equipment to directly destroy, delay, or interfere with measures and actions of enemy aircraft is called active air defense; Measures and actions such as constructing air defense fortifications, evacuating concealed personnel and materials, controlling lights, camouflage, and eliminating the consequences of air raids are called passive air defense. According to different organizations and tasks, air defense is divided into territorial air defense, field air defense, and civil air defense.

The air defense measures and actions taken to defend the national territory and the security of important targets are called territorial air defense; In territorial air defense, air defense to protect the security of important areas is called air defense of important areas. The army conducts an organized struggle for air defense in field conditions, which is called field air defense; The measures and actions taken to mobilize and organize the masses of the people to guard against the enemy's air attacks and eliminate the consequences of air raids are called civil air defense. The above-mentioned types of air defense have their own emphases and are interrelated, and they complement each other to accomplish air defense tasks.

Air defense refers to guarding against enemy targets from the air and shooting them down with artillery or missiles through small openings to prevent them from attacking our ground targets. Enemy air targets include aircraft, ballistic missiles, cruise missiles.

All kinds of air strikes**, more typical of aircraft, missiles and various precision-guided munitions.

Aircraft can be divided into attack aircraft, fighters, bombers, as well as armed ***.

Missiles can be divided into cruise missiles, ballistic missiles.

Anti-aircraft, cruise missiles, precision-guided munitions.

Physical defense, technical defense, and civil air defense refer to the three categories of security precautions. Civil air defense and physical defense are safety precautions through manpower and material resources, such as personnel patrols, standing guard and other preventive measures. Technical defense is to carry out security prevention through modern science and technology, such as electronic monitoring, electronic anti-theft alarm and other technical means.

Physical defense, technical defense, and civil air defense refer to the three categories of security precautions. As the name suggests, civil air defense and physical defense are security precautions through manpower and material resources, such as personnel patrols, standing guard and other preventive measures. Technical defense is to carry out security prevention through modern science and technology, such as electronic monitoring, electronic anti-theft alarm and other technical means.

The air defense force, derived from antiaircraft artillery, is a combat arm with antiaircraft guns and anti-aircraft missiles as its basic equipment.

The main task of the air defense forces is to carry out air defense detection, alert for the occurrence of air conditions; prevent enemy aerial reconnaissance; Interception and destruction of enemy aircraft, cruise missiles and other air strikes** to cover the deployment of troops, operations, military facilities and transport lines to ensure that groups of military and important rear targets are protected from the air enemy or less attacked.

(1) Refers specifically to the arms of the Army that carry out ground air defense tasks. It is composed of ground-to-air missile units, artillery units, radar units, and electronic countermeasures units. It includes reserve air defense units and subordinate air defense units, and has air defense brigades, air defense regiments, air defense battalions, and air defense companies.

2) Generally refers to the arms that use ground-to-air missiles, anti-aircraft guns, radars, etc. as basic equipment to carry out ground air defense tasks.

Russia and other countries are called air defense forces, the United States, India and other countries are called air defense artillery, and Japan and other countries are called anti-aircraft artillery.

Some countries have ground-to-air missile units, radar units, and antiaircraft artillery units in their air forces or air defense forces, collectively referred to as ground air defense units; In the navy there are anti-aircraft artillery units and ground-to-air missile detachments, called shore defense units.

Civil air defense, physical defense, technical defense is the three elements of the security macro return system, of which civil air defense plays a decisive role. Civil air defense is the use of the human body itself to detect and prevent the occurrence of danger, the main role of physical defense is to delay the occurrence of danger, technical defense is through the monitoring system, AI face recognition system and so on to make the means of prevention really play a role, to achieve the desired purpose.

Security system refers to the security system, in order to maintain social public safety for the purpose of using security products and other related products to form a prevention system.

The security system mainly includes 4 parts, namely: control part, video wall display part, anti-theft alarm part, and system power supply.

The so-called security precautions mainly refer to technical precautions, which are achieved through the use of security technology to prevent products and protective facilities.

Explanation of air defense.

There is a shortage of measures to prevent air raids. Mao Dun, "The Story of the Hand": "It is said to be preparing for air defense, which has the same effect as prohibiting the picking of leaves. ”

Word decomposition Explanation of emptiness 空 ō contains nothing and no content: void (a without content; b Holes inside the object). Vague.

Words. Empty. Empty or lacking in stalls.

Empty. Unprecedented. Out of thin air (unfounded).

Vacuum (nothing). There was no result, and it was in vain: I ran empty.

There is no evidence. Explanation of prevention Precautions, prepare for emergencies in advance: prevent.

Preparedness. Prophylaxis. Prevention (guard against high chaos, be on guard).

Take precautions. Defending the city is like a city (refers to strictly controlling personal desires, just like defending a city against the enemy). Prevent small things (stop bad things and mistakes when they first appear, so that they don't develop).

Guard.

"Cities are the key points of civil air defense," and the focus of urban defense are "important economic targets," such as important industrial and mining enterprises, scientific research bases, transportation hubs, communication hubs, large bridges, reservoirs, warehouses, power stations, and so on; these targets are the economic lifeblood of the country and have a direct bearing on the national economy, people's livelihood, and war potential.

1. Control the ground to prevent irrelevant personnel from entering the special area of the airport; Prevent and crack down on the destruction of ground facilities at airports, and then carry out acts that disrupt the normal operation of aircraft.

2. Prevent the act of endangering the safety of aircraft operation by entrapping dangerous goods in the delivered baggage or cargo.

3. Prevent and combat the behavior of aircraft in flight that is interfered with by illegal acts and endangers the safety of aircraft operation.

4. Prevent and crack down on hijacking aircraft, passengers or staff in the air, and requesting to change routes; or using the hijacked aircraft and hostages on board to blackmail ** to achieve the illegal purpose of the hijacker; Even the act of using an aircraft as an offensive **, attacking ground targets.