His primary contribution was in the field of military strategy and leadership. He is best known for:
* Leading Polish forces during the November Uprising (1830-1831): He gained recognition for his tactical brilliance and courage in battles against the Russian Empire.
* Writing military treatises and memoirs: He documented his experiences and insights, which were valuable for understanding Polish military history and tactics.
* Serving as a military advisor to other European powers: He was respected for his knowledge and expertise, advising countries like France and Turkey.
While Chrzanowski may not have been a prolific writer in the literary sense, his writings and actions significantly shaped Polish military history and left a lasting legacy in the field of military strategy.