What does Judges 1:16 mean?

The descendants of Moses' father-in-law, the Kenite, went up from Jericho with the people of Judah to live in the wilderness of Judah, south of Arad. They settled there with them. Judges 1:16 - Modern Text Bible

(The Kenites, related to Moses by marriage, join Judah and settle in the region, showing alliances and shared journeys among Israel's tribes and their allies.)