Deuteronomy 20:9 KJV

7And what man is there that hath betrothed a wife, and hath not taken her? let him go and return unto his house, lest he die in the battle, and another man take her.

8And the officers shall speak further unto the people, and they shall say, What man is there that is fearful and fainthearted? let him go and return unto his house, lest his brethren’s heart faint as well as his heart.

9And it shall be, when the officers have made an end of speaking unto the people, that they shall make captains of the armies to lead the people.

10When thou comest nigh unto a city to fight against it, then proclaim peace unto it.

11And it shall be, if it make thee answer of peace, and open unto thee, then it shall be, that all the people that is found therein shall be tributaries unto thee, and they shall serve thee.