What does Jeremiah 46:2 mean?

Here’s what the Lord says about Egypt, about the army of Pharaoh Neco, Egypt’s king, which was defeated at Carchemish by Nebuchadnezzar, king of Babylon, in the fourth year of Jehoiakim, king of Judah. Jeremiah 46:2 - Modern Text Bible

(This sets the historical context: Egypt’s army was crushed by Babylon at Carchemish, a turning point in the region.)