It seems as if for the first time in history there is an eastern power that can do exactly what this prophecy says. The Apostle John describes the army's mounts as horses with heads like lions and with fire, smoke, and limestone coming out of their mouths. It sounds as if he is describing small cannon, tanks, or some kind of mobilized missile launcher. Of course this is just one theory and you are free to theorize on your own. It is extremely significant to notice that the men who survived the judgments of the fifth and sixth trumpets felt no inclination to turn to God in repentance for their sin and to ask Him for mercy.
Men have no awareness of their sinfulness.
Instead of repenting under affliction, men will continue in their beloved sins. We all know that these sins are all prominent in our society today.