Thematic Bible: The southern boundary of the conquests of joshua

As the Lord had commanded Moses His servant, so Moses commanded Joshua, and so Joshua did; he left nothing undone of all that the Lord commanded Moses. So Joshua took all that land: the hill country, all the South, all the land of Goshen, the lowland, the Arabah [plain], the hill country of Israel and its lowland, From Mount Halak, which rises toward Seir, as far as Baal-gad in the Valley of Lebanon below Mount Hermon. He captured all their kings and slew them. read more.
Joshua had waged war a long time [at least five years] with all those kings.