After some moves, Leviathan seemed to form up behind Doctor Dedalus, a Nazi master spy imprisoned on the Falkland Islands, with a predicted lifespan of months due to Alzheimers.
In the aftermath of Dedalus' breakout, further investigation revealed that a paper trail showed a flow of child soldiers from training camps in the central African republic of Mtamba to locations around the world for use by Leviathan in their campaign.
In Batman Incorporated's struggle against Doctor Dedalus' master plan, they struck and hit empty locations which were in fact pre-prepared traps by Leviathan.
Professor Netz knew after the Second World War, that the only real enemy of mankind would be man himself and upon the somber realization that he would not live forever, he opted to fabricate the twin clandestine operations, each one working the specified fields aligned with their own moral factors and professions; his way of ensuring his own immortality even after succumbing to Alzheimer's.
[5] Before taking up the reigns, Talia would headhunt viable agents & operators from both her fathers League of Shadows as well as from the criminal underground in order to recast it in her image.
Some decades prior to its fall into disarray, Talia would promise her most trusted assassin to be freed of the underlife which Leviathan controls one day, but would maintain her word to enforce her orders creed and edicts until then.
About five years later, as if to make good on said arrangement, Talia ordered the page she took on to kill one of Leviathan's underbosses who'd intended to reveal the existence of her organization to the U.S. authorities because she wouldn't let him leave.
[9] Talia would again regain control of the crime society after revealing to all the leftover remnants tied to Leviathan she'd staged this whole civil war for the sake of thinning and reinforcing its clientele due to their inherent greedy & belligerent nature having debilitated it before.
She would then consolidate her command both by taking her favorite killer back into the fold against her will, before murdering and having them resurrected within the Lazarus Pit to make sure she retains their uncompromised loyalties.
[10] Things don't necessarily get back on track for the secret order, as the system is steadily being dismantled from within just as soon as its original leader resumes power.
Leviathan meanwhile had Superman transported to their location in Chicago and tried to convince him to join him, revealing how Spyral had developed technology to take his son Jon down and promised to fix the "broken world".