Deuteronomy 20:11
"And 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."
Cross References (ranked by relevance)
And Joshua made them that day hewers of wood and drawers of water for the congregation, and for the altar of the LORD, even unto this day, in the place which he should choose.
But his citizens hated him, and sent a message after him, saying, We will not have this man to reign over us.
I am for peace: but when I speak, they are for war.
And it came to pass, when Israel was strong, that they put the Canaanites to tribute, and did not utterly drive them out.
And they drave not out the Canaanites that dwelt in Gezer: but the Canaanites dwell among the Ephraimites unto this day, and serve under tribute.