Air defence is defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action."[1] They include ground-and air-based weapon systems, associated sensor systems, command and control arrangements and passive measures (e.g. barrage balloons). It may be used to protect naval, ground, and air forces in any location. However, for most countries the main effort has tended to be 'homeland defence'. NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence as are initiatives to adapt air defence to the task of intercepting any projectile in flight.

In some countries, such as Britain and Germany during the Second World War, the Soviet Union and NATO's Allied Command Europe, ground based air defence and air defence aircraft have been under integrated command and control. However, while overall air defence may be for homeland defence including military facilities, forces in the field, wherever they are, invariably deploy their own air defence capability if there is an air threat. A surface-based air defence capability can also be deployed offensively to deny the use of airspace to an opponent.

Until the 1950s, guns firing ballistic munitions ranging from 20 mm to 150 mm were the standard weapon; guided missiles then became dominant, except at the very shortest ranges.

The essence of air defence is to detect hostile aircraft and destroy them. The critical issue is to hit a target moving in three-dimensional space; an attack must not only match these three coordinates, but must do so at the time the target is at that position. This means that projectiles either have to be guided to hit the target, or aimed at the predicted position of the target at the time the projectile reaches it, taking into account speed and direction of both the target and the projectile.
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Post comment Comments  (70 - 80 of 107)
OnlySolus Aug 6 2010, 4:44am says:

I like aircraft but I like ANTI aircraft more, win group joining :)

+1 vote     reply to comment
UncleAnkle Jul 27 2010, 12:27pm says:

"Look out, a storm of mustang is coming!"

MY FLAK!! WHERE IS MY FLAK?? Give me 88mm's bullets!

+1 vote     reply to comment
raumboo-not-english Jun 18 2010, 8:15am says:

+4 votes     reply to comment
5anfor May 17 2010, 6:09am says:

i used to get mad at the one who always takes the jet and once he take it i use the anti tank missle to get him before take off ;)

+3 votes     reply to comment
☦BalkanB☢y☦ Jun 30 2010, 4:59am replied:

Yeah, me too, especially when they start racing for it, and killing each other =_=

+1 vote     reply to comment
Eagle19 Apr 27 2010, 1:15pm says:

hey watch this to know who is the Egyptian army:

+1 vote     reply to comment
LordSidonus Apr 19 2010, 9:18pm says:

Know what sucks? When you are playing a good RTS match, have spent alot of time in a base, are just about to build your anti-air and a squadron of bombers comes and totals your base defenses and you get blown off the map. -.-! Death to aircraft!.. missiles count too right? >.> <.<

+2 votes     reply to comment
Maxivz Apr 18 2010, 12:07pm says:

Best way to take the flies down, a t249

+2 votes     reply to comment
Cozmin95 Apr 16 2010, 2:37pm says:

This is the perfect group for retired or active BF2 players!
I hated when someone spawned right next to the aircraft,and i ran desperately towards it but hope was lost! :(
Once i was so mad that because someone always kept taking the jet and i brought him down with the Tunguska! :P

+5 votes     reply to comment
☦BalkanB☢y☦ Jun 30 2010, 5:02am replied:

yeah, and I take them down with ERYX! lol xD (especially choppers)

+1 vote     reply to comment
dragoon43 Apr 19 2010, 1:06pm replied:

interesting i alwys brought them down with the Bradly lookalike

+2 votes     reply to comment
dragoon43 Apr 19 2010, 1:06pm replied:

interesting i alwys brought them down with the Bradly lookalike

+1 vote     reply to comment
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Jan 22, 2010
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Air Defense Lovers Group
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