Compared to the Second Shinobi World War, the Third World War involved more forces, with all five major ninja villages participating, and many outstanding individuals emerging. Many events that occurred after the official plot of Naruto began were all caused by the Third Ninja World War.
For instance, Orochimaru defected, Obito turned evil and wanted to create a world with Rin, and Sand Village further declined, becoming subservient to Konoha...
The cause of the Third Ninja World War was the assassination of the Third Kazekage, known as the strongest Kazekage in history, by Scorpion of the Red Sand. The Sand Village was left leaderless, and the Lightning Country, which advocated military expansion, took advantage of the situation and forcefully invaded the Wind Country.
Haruto, having just traveled through time and not yet met his future wife, realized he was facing a looming war. There was still a hurdle to overcome before he could ascend to the throne of the Wind Shadow.
Hearing Chiyo's words, the lethal beauty Ye Cang was slightly stunned and replied, "If the person is gone, of course, we have to go find him."
The logic was smooth.
Chiyo nodded slightly. This was her idea as well. She turned to Haruto and asked, "You are the student of Master Kazekage. What do you think?"
"No, you must not look for it!" Haruto shouted in a low voice and asked Chiyo with a serious face, "At least we can't look for it in a high-profile manner. Elder Chiyo, this must be what you think, so have you made plans for the worst?"
Chiyo was a little surprised and looked at Ebizo. How did he know that? She was more convinced of Haruto.
"Lord Kazekage is missing, so we must go find him. Otherwise, what about the village affairs? Will you do it?" Ye Cang said with disdain. She and Haruto didn't get along well. They were of similar age and both were genius ninjas. There couldn't be two tigers on one mountain.
"Hmph, you have long hair but little knowledge," Haruto curled his lips, disdaining to argue.
Ye Cang is not a smart woman, otherwise, in the original plot, she would not have been deceived by the real Haruto and gone to the Hidden Mist Village to fall into a trap.
"You..."
Having long hair but little knowledge—isn't that just calling me stupid? Ye Cang was furious and was about to argue with Haruto when Chiyo interrupted.
"No fooling around in the Kazekage's office!" Chiyo scolded Ye Cang harshly, then turned to question Haruto and said calmly, "Tell me what you think. You can say whatever you want."
Trying hard to look sad, Haruto said, "I think the teacher may have been killed."
Ye Cang immediately retorted, "Impossible, Lord Kazekage is the strongest Kazekage in history, how could he be killed?"
"Why not?" Haruto asked, and then said, "Lord Kazekage is my teacher, there are some things I shouldn't say, but now for the safety of Sunagakure, I have to say them. May I ask the two elders, the teacher is known as the strongest Kazekage, how does he compare to the Third Raikage?"
The two were silent for a moment before Chiyo calmly uttered two words: "Not as good as."
Haruto asked again, "How does he compare to the God of the Ninja World, Hashirama Senju, and Uchiha Madara?"
"It's a world of difference."
It's not about boosting others' morale and destroying one's own prestige. The gap in strength does exist, and Chiyo and Ebizo have to admit it.
"That's right, let's not talk about the Third Raikage for now. Senju Hashirama and Uchiha Madara were such geniuses that they dominated the ninja world for decades and pacified the troubled times. Yet, didn't they both pass away after the battle at the Valley of the End? Even though the teacher is known as the strongest Kazekage, it is pure self-deception to say that there is no rival in the ninja world! Ninja is a profession that dances on the edge of a knife. Separation and death are common. Even the most powerful ninja may be killed by a shuriken."