We live in a world where the two are often blurred because of what modern movies portray as bravery. For example picking fights. A while ago I was in Athens, Greece with some Army guys during the vacation season for Greeks (August.) In August the population of Greeks in Athens is almost cut in half leaving druggies, prostitutes and other undesirables. Few bars were open and the ones that were were pretty dodgey. We were told of a club to go to in a crap part of town, Omonia. A neighborhood of Athens not worth checking out and everyone knew it. A few backpackers wanted to round everyone up to go but we voted not to. I will always remember how one of the truly brave servicemen put it, "that's just plain stupid." I believe that Bravery is not about proving something as much as it is about rising to the occasion when the circumstances call for it.
Too often bravery is shown as an over zealous attribute but it is not. Aristotle believed in all things moderate. Cowardice and being and over zealous monger are equally bad while the virtue of Bravery lies in the middle.