And exactly how he stopped him?
I know the theory won't be true but zu actually love the idea that Kaidou actually wanted to save Ave as well because of Yamato and for reasons Shanks butted in.
But on a more serious note... What could be the reason be. Did Kaidou simply fight Whitebeard? And how Shanks stopped him
I know the theory won't be true but zu actually love the idea that Kaidou actually wanted to save Ave as well because of Yamato and for reasons Shanks butted in.
But on a more serious note... What could be the reason be. Did Kaidou simply fight Whitebeard? And how Shanks stopped him

he simply stopped Kaido so Kaido wouldn't be able to help save WB and destroy marines together with WBP but now they saying Kaido wanted to kill WB
...as for how he stopped Kaido, he probably gave him something special, like the missing Red Poneglyph or something 