Naruto: My Ninjutsu is mediocre

There have been more than 50 large-scale wars in the ninja world throughout the ages. It is difficult to say whether they were right or wrong, but historians have all noticed that it was on these ancient battlefields that the rise and fall of many ninja clans was decided, so there has been a saying since ancient times that the winner is the king and the loser is the bandit.
Back then, the First Hokage led the Thousand Hands Ninja, divided his forces into three groups, and joined the Fire Nation. They marched north to conquer Iwagakure, Sand Village, and Kumogakure, achieving a resounding victory! The day after the Fire Nation was fully liberated, the other nations, seeing the situation was hopeless, surrendered one after another.
Thirty years ago, I set out on my journey from Konoha and started the Second Ninja World War. I used ordinary ninjutsu to conquer all enemies I met. Wherever I went, people welcomed me wholeheartedly. It can be said that I had the best timing. The state of vitality and development is still before my eyes.
I don't understand why everyone is talking about Uchiha Madara being trapped in the Valley of the End, as if this ancient battlefield in the ninja world is doomed to be disastrous for us.
In just 30 years, has this place become my burial place?
No matter what, the battle force is 8 to 10, and the advantage is mine!
—Excerpt from the "Speech Before the Fourth Shinobi World War" by the legendary ninja Hazin, the renowned immortal, the ninja among ninjas, the kidney destroyer, and recipient of a lifetime stipend from the Konoha Elders Council.