Ezekiel 32:11 For thus saith the Lord GOD; The sword of the king of Babylon shall come upon thee.
I think sometimes that we do not realize how God moves even among the nations. He, in the life of Israel, will use Babylon to punish His people. You might have thought it was just power hunger kings but God was behind the move. God was using a pagan king to accomplish His purposes.
Their sin, as a nation, had caused God to move against them. The people individually suffer because of the sins of the whole nation. God is bigger than you. He is bigger than your country. He will accomplish His purposes.