In Star Trek Klingon Academy Mission 25: taH pagh taH'be, You must convince general Chang to call off his attack on the Federation.
This is a very difficult task as the entire time in this game, he wanted a war with them. You need to figure out a way to bring him back to the Klingon homeworld and stop the attack from the romulans and Melkor. Is Melkor going to become the next emporer? Is it to be or not to be? That will depend on your actions in this final Star Trek Klingon Academy mission.