What does Ezekiel 39:9 mean?

People living in Israel’s towns will go out and use the weapons left behind—shields, bows, arrows, clubs, and spears—as firewood. They’ll have so much, they won’t need to cut down trees for seven years. Ezekiel 39:9 - Modern Text Bible

(The aftermath of the battle leaves so many weapons that the people use them for fuel, showing the total defeat of their enemies.)