What does 2 Chronicles 11:1 mean?

When Rehoboam got back to Jerusalem, he pulled together all the men from Judah and Benjamin—about 180,000 of them—ready to fight against Israel and win the kingdom back for himself. 2 Chronicles 11:1 - Modern Text Bible

(Rehoboam, Solomon's son, wants to use force to take back control after most of Israel split away. He's gathering a huge army from the tribes that stayed loyal to him.)