Mobile Suit Gundam 0083 (Light Novel)

Beginning four years after the one year war, 0083 starts with the arrival of two new Gundam units to be used for gravity testing. Things take a turn for the worse when members of Zeon steal Unit 2 and the nuclear warhead it that it has been armed with. Young test pilot-in-training Kou Uraki, piloting Gundam Unit 1, must now capture the stolen Gundam before it can be used to fulfill Zeon's mysterious "Operation Stardust".