Complex sentence: Some historians believe that this implied Kangxi's favouring Yinti for succession, and was training the next emperor in military affairs; others maintain that Kangxi intended to keep Yinti a large distance away from the capital to ensure a peaceful succession for Yinzhen.
Split into simpler sentences: Some historians believe that this implied Kangxi's favouring Yinti for succession and was training him to become the next emperor in military affairs. Others maintain that Kangxi intended to keep Yinti away from the capital to ensure a peaceful succession for Yinzhen.