OK. This is just another boring massacre. Sorry about that.
You pretty much know the story line by now.
And they turned and went up by the way of Bashan: and Og the king of Bashan went out against them, he, and all his people, to the battle at Edrei. Numbers 21:33
Lucky for Moses, though, God was on his side, and God delivered the Bashanites into Moses' hands.
And the LORD said unto Moses, Fear him not: for I have delivered him into thy hand, and all his people. Numbers 21:34a
God tells Moses to do to them what he did to the Amorites.
(Gosh, I wonder what that was.)
And thou shalt do to him as thou didst unto Sihon king of the Amorites. Numbers 21:34b
So the Israelites killed king Og.
So they smote him Numbers 21:35a
And his sons.
and his sons, Numbers 21:35b
And all his people.
and all his people Numbers 21:35c
Not a single person was left alive.
until there was none left him alive. Numbers 21:35d
And they took their land.
and they possessed his land. Numbers 21:35e
You're in good hands with Moses.
Note: Since Judges 11:21 makes it clear that God delivered the Amorites just like he did the Bashanites, I included both massacres in this killing.
Estimated victims: 2000.
God's next killing