Why do the US Army, Air Force, and Marines have the same names for all officer ranks but the US Navy uses completely different names? - Quora
![US Military Ranks Poster, United States Enlisted and Officer Insignia Poster, Army, Marines, Air Force, Navy, Coast Guard, Wall Art - Etsy US Military Ranks Poster, United States Enlisted and Officer Insignia Poster, Army, Marines, Air Force, Navy, Coast Guard, Wall Art - Etsy](https://i.etsystatic.com/19926262/r/il/c47886/1920289845/il_570xN.1920289845_9mpy.jpg)
US Military Ranks Poster, United States Enlisted and Officer Insignia Poster, Army, Marines, Air Force, Navy, Coast Guard, Wall Art - Etsy
![United States Military Rank Structure for the Air Force, Army, Marines, Navy, National Guard and Coast Guard Insignia - Military Rank United States Military Rank Structure for the Air Force, Army, Marines, Navy, National Guard and Coast Guard Insignia - Military Rank](https://www.aviationexplorer.com/Military_Insignia_Rank_Structure_Charts/US_Military_Enlisted_Ranks_All_Branches_Of_Service.jpg)