Rank and file

Definition and stakes

William Duane,  A military dictionary

“ Rank, is a straight line made by the soldiers of a battalion, or squadron, drawn up side by side: this order was established for the marches, and for regulating the different bodies of troops and officers which compose an army.
Doubling of the RANKS, is the changing one rank to two, by telling off the files, one, two, one, two, &c. and by the word, even files to the rear double; this method is frequently used in the manœuvres of a regiment.
Rank and file, men carrying the firelock, and standing in the ranks, are called rank and file.
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Source: Gutenberg

Thomas Wilhelm,  A Military Dictionary and Gazetteer

“ Officers or men in excess of the establishment, but borne on the rolls of the corps till absorbed. Supernumeraries, or supernumerary rank, also signifies the officers and non-commissioned officers in the infantry, cavalry, etc., who are not included among rank and file, and stand in the third rank on parade, when the troops are drawn up in double ranks.
Supersede. Is to deprive an officer of rank and pay for any offense or neglect, or to place one officer over the head of another, who may or may not be more deserving.
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Source: Gutenberg

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