Any great warrior monologues for men from a published play?

I have a theater project coming up and I'm looking for a great warrior monologue something inspirational kinda of like king leonidas's speech from 300 but my guidelines are it has to be from a published play, I've tried oedipus and its a great play but I don't feel comfortable with it just wondering if there are any great warrior plays I'm not aware of since I'm not that cultured in plays and my selection at my school library is slim any ideas or references would be great something motivational like an officer motivating his troops to go to battle or a defeated general making his last stand any war era would be fine eg. Vietnam, ww2, Greek preferably, roman, middle eastern, civil war , revolutions would be awesome like french American or Spanish, dosent have to be just classical like Shakespeare and not Othello because my teacher won't allow since we performed that play during march.