The Iliad is a warrior's poem. A close reading will show that the question for the protagonists is "what must I do to fulfill my role?" "Do I step up and throw my spear or shrink back?" The issue is living up to social norms and ideals. Doing your job and filling your role. Looking at it through the model INFJ fits this very well and in the right circumstances will work well in the modern military.
Don't let your type stop you from entering your chosen career because you can get a clever lawyer to show you how to make your type fit your career or visa versa. And then look before you leap.