User blog comment:Kaido King of the Beasts/Chapter 865: Mother, Into Your Hands I Commit My Spirit/@comment-244290-20170511191323

We know there are multiple islands/tribes of giants, with Elbaf being the most famous, and Big Mom made enemies of all of them. That would take some work.

Now the flashback is going to Elbaf, the only group of giants that she had a chance to reconcile and ally with.