Though mayhap I will repay the favor in battle. Yes, I too will fight in the Naadam, though you may not see me. While you and yours contest the ovoo, my comrades and I will devote our efforts to preventing other tribes from interfering.
We are few, and we are weak, but we shall do what we can to aid you. Go well, traveler, and if it be the gods' will, let us speak again when the day is done.
The children are of course too young to fight, but not too young to observe. Their time will come.
Of course...if all goes to plan, this is like to be but the first of many such debts. Yet I promise to endure my insolvency with a smile, out of gratitude to the kami for seeing fit to send you hither.