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Wikipedia: The North Atlantic Treaty Organization; French: Organisation du traité de l'Atlantique Nord (OTAN)), also called "the (North) Atlantic Alliance", is an intergovernmental military alliance based on the North Atlantic Treaty which was signed on 4 April 1949. The NATO headquarters are in Brussels, Belgium, and the organization constitutes a system of collective defence whereby its member states agree to mutual defence in response to an attack by any external party. For its first few years, NATO was not much more than a political association.
![[The German Bundeswehr provided the largest element of the allied land forces guarding the frontier in Central...]](http://images.ookaboo.com/photo/s/BundeswehrM47Patton_s.jpg "The German Bundeswehr provided the largest element of the allied land forces guarding the frontier in Central...")
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![[NATO Ministers of Defense and of Foreign Affairs meet at NATO headquarters in Brussels 2010]](http://images.ookaboo.com/photo/s/NATO_Ministers_of_Defense_and_of_Foreign_Affairs_meet_at_NATO_headquarters_in_Brussels_2010_s.jpg "NATO Ministers of Defense and of Foreign Affairs meet at NATO headquarters in Brussels 2010")
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 from Wikifreund |
from Wikifreund |
![[Sign showing how the new NATO HQ will look, in front of the site where it will be built]](http://images.ookaboo.com/photo/s/NewNatoHQconstructionSite_s.jpg "Sign showing how the new NATO HQ will look, in front of the site where it will be built")
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![[NATO planes engaged in aerial bombardments during Operation Deliberate Force after the Srebrenica massacre]](http://images.ookaboo.com/photo/s/F_16_deliberate_force_s.jpg "NATO planes engaged in aerial bombardments during Operation Deliberate Force after the Srebrenica massacre")
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 from David Edgar |
from Orlovic |
![[The 11 September attacks caused NATO to invoke its collective defence article for the first time]](http://images.ookaboo.com/photo/s/National_Park_Service_9_11_Statue_of_Liberty_and_WTC_s.jpg "The 11 September attacks caused NATO to invoke its collective defence article for the first time")
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![[Secretary General Jaap de Hoop Scheffer meeting George W. Bush on 20 March 2006.]](http://images.ookaboo.com/photo/s/Bush_dehoopscheffer_s.jpg "Secretary General Jaap de Hoop Scheffer meeting George W. Bush on 20 March 2006.")
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from Quasipalm |
from Jacoplane |
![[Individual Partnership Action Plans were launched at the 2002 Summit in Prague.]](http://images.ookaboo.com/photo/s/NATO_2002_Summit_s.jpg "Individual Partnership Action Plans were launched at the 2002 Summit in Prague.")
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![[The NATO Secretary General, the U]](http://images.ookaboo.com/photo/s/NATO_March_29_2004_s.jpg "The NATO Secretary General, the U")
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from Cantus |
from :en:Jiang |
![[NATO's International Security Assistance Force in Afghanistan was its first action outside Europe]](http://images.ookaboo.com/photo/s/ISAF_soldier_looking_for_enemy_positions_in_Kunar_Province_of_Afghanistan_s.jpg "NATO's International Security Assistance Force in Afghanistan was its first action outside Europe")
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from Officer |
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