Uchiha Yue might not have known exactly how much combat power the Fourth Mizukage Yagura possessed under Uchiha Madara's control.
However, if Uchiha Yue had known that Uchiha Madara had completely seen through the plan between him and Shikaku Nara, he would certainly have been shocked. At that moment, Uchiha Madara had actually realized that Uchiha Yue intended to first end the war involving Sunagakure in the Land of Wind before dealing with Kirigakure, where Madara was based. In that case, the odds of Uchiha Yue successfully carrying out his plan with Shikaku Nara depended on whether Uchiha Madara had any interest in preserving Kirigakure.
Without a doubt, Kirigakure was merely a tool in Uchiha Madara's eyes. As long as he found a successor capable of reviving him, Madara would have no interest in remaining in Kirigakure any longer. In other words, Madara's greatest priority now was finding a successor, not paying attention to the overall situation in the Shinobi World, much less preserving Kirigakure.
Therefore, if Uchiha Madara had no interest at all in handling Kirigakure's affairs, Uchiha Yue and Shikaku Nara's plan could be successfully carried out. By then, Uchiha Yue was at least ninety percent confident that, after resolving the war with Sunagakure, he could head to Kirigakure to carry out his revenge and successfully destroy it.
But if Uchiha Madara still had the interest to protect Kirigakure, then Uchiha Yue and Shikaku Nara's plan would be somewhat dangerous, with less than a thirty percent chance of success. After all, Uchiha Madara was no longer merely a hidden powerhouse. He also had quasi-Kage-level experts like Sasori of the Red Sands and Yagami Ling at his side. Besides, a major shinobi village like Kirigakure was no soft target for Uchiha Yue to manipulate at will.
Moreover, Uchiha Madara