Internationalist Bastard wrote:All I really know is the Franco Prussian War, which if that's to speak of his reign, he wasn't that great
Advisors and family members had too much influence on him, that's for sure, and they were the ones behind the disasters like l'intervention au Mexique and the Crimean War.
His forte wasn't on the military field but rather the administrative and political one. I heavily advise you to read about his life and work, it's truly interesting.