Civil Service (GS) to Foreign Service (FS) to Military Officers (O) Comparison

Inter-agency coordination is very important in foreign affairs.  There are actually around seven different agencies that have foreign operations.  When working with others, especially in the Embassy/Mission, understanding the chain of command will help.  Below is a chart of how the various grade levels approximately compare.

Most junior officers tend to enter the Foreign Service at the FS-06 level, particularly low on the totem pole compared to our counterparts.  However, Foreign Service Officers are administratively promoted each year to FS-04 where they will then enter competitive status among other FSOs for future promotions. 

Civil Service (GS) to Foreign Service (FS) to Military Officers (O)

***UPDATE 9/28/2014: In my experience thus far with the Foreign Service, this comparison chart has pretty much no validity or function in reality.  The Civil/Foreign Service comparison to military counterparts are not used for anything and would be laughable, and/or embarrassing, if used.  And for Civil/Foreign Service comparisons, the most it might be used for are comparisons for salaries in the event of a Civil Service to Foreign service conversion.