One Piece: Why Dragon Left The Marines, Explained

Monkey D Dragon used to be a member of the marines in One Piece - however he left to create the Revolutionary Army.

Monkey D. Dragon, One Piece Wiki

One Piece chapter 1099 teases Dragon's Devil Fruit powers

Luffy's Dad is WAY STRONGER than You Think! Dragon's Devil Fruit

What happened to these two? : r/OnePiece

Queen of the Damned — You have any thoughts about why Dragon left

God Valley 'One Piece': God Valley in 'One Piece' Explained

One Piece chapter 1097 finally confirms Dragon's Marine past

One Piece: 10 Things About Marines That Make No Sense

All of the Admirals and Admiral candidates have codenames based on