What does 1 Chronicles 5:6 mean?

Baal's son was Beerah, who was taken away by the king of Assyria, Tiglath-Pileser, when he invaded their land. 1 Chronicles 5:6 - Modern Text Bible

(Beerah, a leader from Reuben's tribe, was captured and exiled by the Assyrian king, showing the tribe's decline.)