Which kingdom is the fourth kingdom in Daniel 2?

I’m interested in the Christian viewpoint on Daniel 2? Which kingdom is the fourth kingdom represented by the iron legs of the image? Do Christians believe this is the Romans? I am assuming, correct me if I am wrong, that Christians believe that the stone cut but not by hands which destroys the kingdom is the anointed king of Israel. Given that Rome has long been under the control of Christians does this mean that Christians believe that the Messiah will come to destroy Christianity in general or just Catholicism?