What is the difference between a fighter and a coward?

In my universe I always analyze people to test their strengths to see if they can measure up to his or her expectations; however it is not simple. What amazes me is, that there are men and women who, simply won’t confront his or her opponent’ or enemy simply because of intimidation or fear. In the work field or in the US Army there are so many people who AWOL or simply refuse to join because of their insecurity. I get offended because America was always a fighter now when I talk about fighter here is what I describe it as.

Fighter:

A fighter is someone who has the encouragement, someone who fights to the end someone who doesn’t want to be walked all over on. Or is not willing to be judged by (someone who thinks poorly) of him or her. A fighter accepts a challenge made by his or her opponent who called them out and is willing to beat them at their own gain.

Coward:

A coward is someone who is intimidated someone who doesn’t have the guts to face someone who is calling that person out. A coward goes along with things just to see how the opponent reacts and performs while on the floor. A coward is someone who doesn’t stand up for what he or she wants and would make excuses as to why they refuse to do such thing. A coward is someone who won’t go somewhere or even try to hunt those who are asking for them.