tension becomes one of the characters in Julius Caesars-how far do you agree

Tension comes out of conflict. There is much conflict in this play. Consider the following ideas:

Man vs Himself - Brutus is the protagonist. He struggles with himself over loyalty to his friend or loyalty to his country. Is killing your friend, in the name of a higher cause, justified if you are to uphold democracy? Also Brutus is never too sure if his fellow conspirators will turn on him. There is also the struggle of a republic vs and emperor. This tension permeates this play in many forms. One can call it a "character" in the sense that it visits different situations in different guises.