Here is the governing hierarchy of a standard western style modern military. This is mostly just an amalgamation of the military rankings used primarily within the US and UK armed forces with some inventions of my own. (For example, I gave the OF-10 to OF-7 Air Force ranks the title of 'Marshal' just to make them more distinct from their Naval and Army counterparts.) If you're wondering how I came up with this list, I used this link as a frame of reference: http://legacy.koveras.org/ranks/ranks.html