What is true heroism? what are the typical expectations of a hero? how do these ideas about heroism influence the way you consider henry in the red badge of courage? is he heroic? why or why not?

It was defined by thehindu.com that:

A trusted friend and mentor described the concept of heroism, not as an instinctive demonstration of bravery, but as an unselfish act performed even when aware of danger to self, through surmounting the fear by acting with courage.

I hope my answer has come to your help. God bless and have a nice day ahead!