Shihōin Naraku was certain: the outcome of the battle in the Land of Waves was already decided!
Since the initial wave of the White Zetsu Army had failed to overwhelm the First Division and had even allowed them to hold out until reinforcements arrived, that meant there would be no more opportunities.
Even if White Zetsu used their powerful Transformation Technique to launch sneak attacks after nightfall, they would not be able to inflict too many casualties.
The White Zetsu's disguises were good, but there were all sorts of ways to identify them if someone truly tried.
After all, even if they copied someone's appearance and chakra, they were not the actual ninja themselves.
The various clues they inadvertently revealed could easily expose them.
Of course, under normal circumstances, their disguises were still very useful.
Expecting to win a war through the White Zetsu's disguises was unrealistic.
But disrupting the Allied Shinobi Forces from within and causing some unrest was certainly possible.
In Shihōin Naraku's own opinion, this disguise ability of the White Zetsu was actually most useful on the front lines.
During fierce fighting, the White Zetsu only needed to disguise themselves as ninja to have a considerable effect.
After all, at a time like that, the Allied Shinobi Forces simply had neither the time nor the energy to distinguish who was who, allowing the White Zetsu to slip easily into their ranks.
With the slightest lapse in attention, the White Zetsu would silently infiltrate the Allied Shinobi Forces.
Then, at a critical moment in the fighting, a stab in the back from the White Zetsu could throw the Allied Shinobi Forces into chaos.
This was no idle claim.
At that very moment, along the coast of the Land of Waves, the White Zetsu were using precisely this tactic