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.

World Noble, One Piece Wiki

One Piece Chapter 1097 Spoilers Reveal Dragon's Marine Past: Why

One Piece: Why Is Dragon Aiding Luffy and the Straw Hats?

One Piece: Warship Island Arc (Filler)

One Piece: Who Are the Celestial Dragons and Why Are They Strong

One Piece Marine ranks hierarchy explained

Monkey D. Dragon, One Piece Wiki

One Piece Film: RED Spoiler Talk (FULL SUMMARY) – The Library of Ohara

One Piece Marine ranks hierarchy explained

I am convinced (Ch. 1088 Spoilers!) : r/OnePiece