What does Deuteronomy 3:10 mean?

We took all the towns on the plateau, all of Gilead, all of Bashan, as far as the cities of Salecah and Edrei—these were part of Og’s kingdom in Bashan. Deuteronomy 3:10 - Modern Text Bible

(Israel’s conquest included all the major towns and regions under Og’s control, highlighting the extent of their victory.)