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              ***, Strategic Concept for the Defence and Security of The Members of the North Atlantic Treaty Organisation, Adopted by Heads of State and Government in Lisbon, (2010), in http://www.nato.int/lisbon2010/strategic-concept-2010-eng.pdf
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              NATO, Strategic Concept for the Defence and Security of the Members of the North Atlantic Treaty Organisation, November 2010.
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              NATO, Strategic Concept for the Defence and Security of the Members of the North Atlantic Treaty Organization, adopted by Heads of State and Government at the NATO Summit in Lisbon, 19-20 November 2010, http://www.nato.int/strategic-concept/pdf/Strat_Concept_web_en.pdf
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