WI, when the Mongols invaded in 1274, they succeded in taking Japan, or at least Kyushu? After all, they had thought they had lost even though they had won, and when they tried again, they were hit by a typhoon. Did the Mongols adopt Chinese and Korean weapons and strategies? If so, would the Mongols adopt the Katana and Japanese militaristic tributes along with the recurve bow? Is it possible for the Mongols to become like Alexanders or the Roman Empire's, exept that the Mongols stay together under Kublai and his succecors? Would it survive up to the present era and become a Republic? Would it split under Communism?