Some translation from the history part from Reddit
When Aokiji joined the navy he was called the recruited monster and possessed a great fighting force that he had not learned from anyone, but he gained more strength when Monkey D Garp trained him.
Aokiji was looking at Monkey D. Garp's past since Aokiji was a new recruit.
Akainu was also called "the recruited monster".
Justice of Aokiji was Burning Justice, but later changed to Lazy Justice after what happened in Ohara.
After the Rocks Pirates disintegrated, Whitebeard gathered a crew and became stronger (Whitebeard at the time of the Battle of God Valley is 36 years old, but its most cherished strength was at the age of 38)
What makes Roger's pirate crew strong and united despite their small number is their confidence in the leader.
Thanks to @ EMUNOPLA on twitter for translating the information. The raws can be found on his twitter.