'Men of War' in the Bible

Then Eleazar the priest said to the men of war who had been to the fight, This is the rule of the law which the Lord has given to Moses:

And let division be made of it into two parts, one for the men of war who went out to the fight, and one for all the people:

And from the men of war who went out let there be offered to the Lord one out of every five hundred, from the persons, and from the oxen and asses and sheep: