Not to nit-pick, but it was the "Black Robed Regiment". No racial implications...
Likewise to Herod's demise, Nebuchanezzar had a year's warning before he was driven from among men and had his mind replaced with that of a beast for a number of years. He was fortunate enough to be restored to power, but only after he acknowledged that God was his supreme commander.
Also we must consider this: As our brother mentioned, God does at times declare judgement to leaders of nations. God can speak a direct judgement or He could speak judgement through His saints. Now I am not saying that this is something that we would do on our own. It would have to be in the will of God. When I pray for wicked leaders to be removed, I am not praying for their death. God's will is that all would be saved and come to the knowledge of the truth. Mike