The root of all evil is our false sense of sovereignty. There is no limit to cruelty when we begin to think that we are masters. The claim to sovereignty and is countered with the fact that all human power eventually wastes away. All human empires eventually decline and become the dominated or enslaved. God's goal is to dishonor the honored, to humble the proud.
Arms alone can keep the peace.
The prophets question human infatuation with might. They insist on the immorality, futility and absurdity of war. They present an alternative vision and deny that we can prevail by force. Do not let Hezekiah mislead you by saying, The Lord will save us. Who among all the gods of these countries have saved their countries out of my hands, that the Lord should save Jerusalem out of my hand.