Yoshikazu Yasuhiko , Hajime Yatate: Mobile Suit Gundam: The Origin 3

In the third volume of Gundam the Origin, the White Base is on the run after a successful attack against the Zeon forces in Los Angeles. As they refuel en-route to their Federation base in Jaburo, hidden in the heart of the Amazonian jungle, the crew learns they may be holding on to a new weapon just as valuable as their new Mobile Suit.