> I believe he [Napoleon] began to suffer from megalomania, as he achieved one success after the other. <
Yes, I think you’re right. Napoleon had “victory disease”.
https://en.wikipedia.org/wiki/Victory_disease
Lots of countries had that disease. Japan in WW2 probably had the worst case.
https://pearlharbor.org/blog/what-is-victory-disease/
I find the phenomenon interesting because the United States caught a case of it right after WW2. We decisively beat Nazi Germany and Imperial Japan. Therefore, we would decisively win every new war, everywhere.
Korea, Vietnam, and then Afghanistan all proved that idea wrong. Yet many in DC still believe it, and so are itching to start new wars.
I find the phenomenon interesting because the United States caught a case of it right after WW2.