In 1210, Genghis Khan insulted Emperor Weishaowang by publicly stating that he was a coward and unfit to be a leader. Genghis added, "The emperor should be a man from sky like me." Soon, news spread to the Jin emperor through a Jin officer. The Jin emperor was enraged and ordered the execution of the Mongolian ambassador. Tensions between the Jin and the Mongols started to escalate and Genghis Khan declared war with the Jin.