What does Micah 5:1 mean?

Get ready, people of Jerusalem. Trouble is coming, and you’ll have to defend yourselves. They’re going to lay siege to us, and they’ll even strike Israel’s leader on the cheek with a stick. Micah 5:1 - Modern Text Bible

(Micah warns Jerusalem that an enemy is coming to attack. The city will be surrounded, and even its leader will be humiliated. This is a moment of crisis and shame.)