I'm just wondering if this scenario is at all plausible; If the Russian Empire really kicked butt in WWI and conquered Constantinople would it make sense for them to restore the Byzantine Empire as a puppet state? Is it at all plausible? As for why they did so well let's say that a more competent Tsar reforms the military and industrializes Russia earlier.
If not is their another way it could happen after 1900?
If not is their another way it could happen after 1900?