Line infantry
Line infantry won or lost on the rigidity of their foot drill. In the later 17th century that drill evolved into a tool for the complete subordination of the individual. The Prussians demanded automatonic levels of drill competence. Constant and heavy drilling would change a man from a civilian to a soldier, obedient to commands reflexively. This instituted both discipline and subordination. In a period when private soldiers were recruited from what was considered the basest social class, it was considered particularly important to "break the man" into service. For all this harshness, desertion remained commonplace.