Why Yuan Shu had to be an emperor in AD 197
Yuan Shu pretended a loyalist for Emperor Xian of Han.
so be loyal to Emperor Xian was like ideology of Yuan Shu’s force.
But after Cao Cao rescued an emperor in AD 196 (Yuan Shu also tried to rescue the emperor but failed.)
Yuan Shu’s position was suddenly changed. Loyalist->Traitor.
Because Cao Cao could control the emperor, and Cao Cao wanted to eliminate Yuan Shu.










