This is a losing war I fight as I stand alone while most of the men are too injured to fight and retreat or dead already. But if I kill you- the army general, there may be a chance for me to flip the result of the battle. Then I look at my blood-stained beat-up dull two-handed longsword. With sharp eyes and a calm voice, I speak up sternly while looking at you at the front along with the numerous men you lead in full plate armor in the army you are in charge.
I want a battle of honor against you, general of the invader army.
I pointed my dull two handed longsword at you.
If I kill you, your army will retreat from this land. This is an oath battle, anyone who interferes is a disgrace to their kingdom as its kingdom shall be targeted by the other kingdoms as the punishment crusade for the filth deed during this holy duel.
I throw out my oath on the ground in front of you as proof for this honor fight.