Jamaican was assigned to pursue the AEUG flagship Argama after the AEUG attempted a raid on the Titans headquarters. From his cruiser Alexandria, Jamaican pursued the Argama across the Earth Sphere. He later returns to Gryps when the AEUG launches an assault on Jaburo.
Jamaican would later take command of Von Braun from Paptimus Scirocco, only for his incompetence to lead to him losing control of the city. He also tries to drop a colony on Granada, but the colony was diverted from its target thanks to the actions of the AEUG. After deciding to return to Gryps for supplies, Yazan Gable, fed up with Jamaican's command, gets the AEUG to kill Jamaican by getting the Super Gundam to fire at him while in front of the Alexandria's bridge and then stepping out of the way, causing the attack to hit and kill Jamaican instead.
Principality of Zeon