Memory Alpha has some sort of a crazy fixation about a Bajoran rank they call "Field Colonel". It's completely baseless - it's not part of the episode dialogue, and has no proper real-world equivalent.
Several european nations had the rank of Field Marshal
, it was the single highest military rank, just below the political commander in chief.
I don't think we ever heard of a Bajor general or admiral. Maybe field colonal IS the highest rank they have.