Aside from the final Extermination War, this plan had three difficulties—the first was landing, the second was establishing and protecting the Mage Tower, and the third was pushing the front line to the outskirts of Leipzig.
Of these three difficulties, each was easier than the last... In the end, expanding outward was actually the simplest step.
The demons' levels had been suppressed quite low. Once they lost the advantage of numbers, they could not defeat the elite soldiers of the Black Eagle Legion. Not to mention that the Mage Tower could command from the center.
--The hardest part was actually how to land.
This was not a game, after all. There was no way to "turn off friendly fire." That meant the elven warships had to sail at the very front, or the rays would hit their allies—if a ship blocked the rays, Cruel Evangelist would be unable to cover them.
To prevent the ships from being destroyed by long-range spells, the warships could only spread out as much as possible, forming a long single-file line. That was the only way to prevent one spell from sinking an entire section of them.
But this would leave openings on the flanks.
If any demons took a wide detour around them, they could only rely on the Griffin Legion to deal with them.
Half the Demon Legion had the ability to fly, yet less than a tenth of the human legions possessed reliable anti-air and area-of-effect capabilities. On top of that, the Children of the Moon feared naval combat. At a time like this, they would avoid exposing themselves to evade concentrated demonic fire, so naturally they could not contribute much fighting power.
If another ship sank, the soldiers aboard could still be rescued—but the Children of the Moon dissolved the moment