 Nyora kupfuurira kweiyi ndima - Muna 1775 Pirch akatanga basa rake muchiuto chePrussian, achiva mudzidzi muHessen-Kassel Nr. 45 regiment yevarwi. Muna 1787 akaona chiito mukupinda kwePrussian muHolland uye muna 1793 akapinda muKukombwa kweMainz. Akava musungwa weFrance kwemakore maviri pashure pokukundwa kwePrussian muHondo yeJena muna 1806. Apo Hondo yeChitanhatu Yakabatanidzwa yakatanga Pirch akagadzwa kuva mutungamiri webrigade muna April 1813. Achishumira muuto reBohemia, akarwa muhondo dzeLützen, Bautzen, Dresden, uye Kulm, achiwana kukwidziridzwa kusvika pachinzvimbo cheMajor General uye makirasi ese eIron Cross. Muhondo yeLeipzig akatungamira kutorwa kwemusha weProbstheida, kunyangwe akatambura kurasikirwa kukuru muboka rake; nekuda kwebasa rake muhondo akapihwa iyo Pour le Mérite nemashizha e oak uye iyo Russian Order yaSaint Anna 1st kirasi. Muna 1814 akabatanidzwa muHondo yeLaonpasi pokutonga kwaBlücher. 