וְהָיָ֛ה כְּכַלֹּ֥ת הַשֹּׁטְרִ֖ים לְדַבֵּ֣ר אֶל־הָעָ֑ם וּפָֽקְד֛וּ שָׂרֵ֥י צְבָא֖וֹת בְּרֹ֥אשׁ הָעָֽם׃ (ס)
And it shall be, when the officers have made an end of speaking unto the people, that captains of hosts shall be appointed at the head of the people.
Read halakhic rulings (Jewish law) on Deuteronomy 20:9: and classical halakhic sources.