私は、この現象のために防衛産業が具体的に使用するフレーズを知りませんが、これは「利益相反」のカテゴリーに該当します。この用語は、個人または組織が競合する利益または忠誠心を持っている状況を説明するために使用されます。ただし、「Usoloboros Armsディーラー」は確かに詩的です。
I am not aware of a phrase used specifically by the defense industry for this phenomenon, but this would fall under the category of "conflict of interest". This term is used to describe situations in which an individual or organization has competing interests or loyalties that may compromise their ability to act impartially or in the best interests of those they serve. However, "Ouroboros arms dealer" is certainly more poetic.