Original sentence: The armor worn by cuirassier regiments gradually decreased as time went by until by the time of the Napoleonic wars it was limited to a helmet and in some armies; such as those of France, Austria, Prussia and Russia; breastplates
Edited sentence: The armor worn by cuirassier regiments gradually decreased as time went by until by the time of the Napoleonic wars it was limited to a helmet and in some armies (such as those of France, Austria, Prussia and Russia), breastplates