Man versus man is the most fundamental type of external conflict. This form of external conflict occurs when a character struggles against another character. These struggles may be born from moral, religious or social differences and may be emotional, verbal or physical conflicts. Man versus man is almost always the conflict present when a hero fights a villain. This form of conflict may present alone, or in conjunction with other external conflicts. Star War's is an excellent example, where Luke Skywalker's fight with Darth Vader is a man versus man conflict that also treads into the realm of man versus fate.