text: One source of tension in this organization is the purchase of the S-400 system by one of its members.
full_question: One source of tension in this organization is the purchase of the S-400 system by one of its members. Scientific cooperation among the members of this organization was recommended by a set of foreign ministers from Norway, Italy, and Canada dubbed the “Three Wise Men.” This organization orchestrated the Able Archer 83 military exercise, which was falsely perceived as a prelude to nuclear war. Intervention in the Bosnian War was led by, for 10 points, what still-extant alliance of western countries once opposed by the Soviet bloc?
first_sentence: One source of tension in this organization is the purchase of the S-400 system by one of its members.