UX-78-G1 Gundiver

The UX-78-G1 Gundiver was the first Allied Mobile Suit that was designed specifically for underwater combat. It helped the Allies win essential naval engagements with the Japanese.

History
The Gundiver made its first appearance at the Battle of Midway where it managed to land a killing blow on the Akagi, the flagship of the Japanese Aircraft Carrier fleet, which caused it to sink.

It was used several more times during Guadalcanal, Komandorski Islands, Leyte Gulf and Operation Ten-Go all of which were won due to the Gundiver and the all-new UAG-79 Aqua GM that was introduced in 1943.

It was later used during the Cold War where it was used to intercept key communications from Russian submarines.