How should the Moabites be treated?

How should the Moabites be treated?
Do not fight against them or take their land.	Kill them and take their land.
Deuteronomy 2:9 And the LORD said unto me [Moses], Distress not the Moabites, neither contend with them in battle: for I will not give thee of their land for a possession; because I have given Ar unto the children of Lot for a possession.	Judges 3:28-30 And he said unto them, Follow after me: for the LORD hath delivered your enemies the Moabites into your hand..... And they slew of Moab at that time about ten thousand men ... and there escaped not a man. Moab was subdued that day under the hand of Israel. Jeremiah 48:2 There shall be no more praise of Moab. ... Come, and let us cut it off from being a nation.