After watching this series I had an idea. Could we see a European equivalent of this with different Christian groups replacing the groups in the video's scenario? If tech is roughly at the 1700's level and an unusually advanced Catholic nation is offering weapons with the caveat that only Catholic nations can buy their weapons, what would be the weakest possible weapons technology from the future (relative to the 1700's) you would have to offer to a Protestant King in order to have them convert to Catholicism? Would Minie Balls and American Civil War era rifles do the job? The Protestant nation involved is one of Europe's colonies surrounded by other Protestant nations of varying denominations who hate each other anyway and constantly war among themselves. How bad would the consequences of such a conversion be? Would a large chunk of the entire region gang up to crush the convert? We'll assume that we're dealing with an unscrupulous, power hungry King but I suppose the weapons would have to be pretty powerful relative to what they had before to be worth it.