What does 2 Chronicles 22:5 mean?

He even joined Ahab's son, Joram, king of Israel, in a war against Hazael, king of Aram, at Ramoth-Gilead. Joram was wounded in the battle. 2 Chronicles 22:5 - Modern Text Bible

(Ahaziah teams up with Israel's king in a risky war, which ends badly for Joram, who is injured.)