hu·man·i·ty
noun \hyü-ˈma-nə-tē, yü-\
Being willing to sacrifice for the good of others (humanity) as well as for yourself and your loved ones shows your humanity.
The man in the photo is wearing what my f-i-l was likely wearing when he landed on Omaha Beach on D-Day and later when he was in the Pacific.
American cemetery at Omaha Beach. There are many such cemeteries for the dead of many countries.
This, that and the other thing 