“…Its decline perhaps unsurprisingly coincides with attempts to establish a specific, seamless system of 30 Ibid at 352; Ruth Henig, "New Diplomacy and Old: a Reassessment of British Conceptions of a League of Nations, 1918-1920" in Michael Dockrill and John Fisher, eds., The Paris Peace Conference, 1919: peace without victory (New York: Palgrave, 2001) 157 at 163. 31 Supra note 27, Koskenniemi at 49,[62][63][70][71][103][104][105][106]127,[129][130][174][175]307,331,335,[364][365] impartial rules regarding international conduct, outside of custom and self-help. Thus changes in international law as a discipline contribute to the decline of pacific blockade as a doctrine, even if initial efforts to criticize its legitimacy seemingly failed in the 1880s, the systematization of rules cutting out options for states.…”