The Yammka was a Yuuzhan Vong miid ro'ik that served as the flagship of Nas Choka.
The vessel was young enough to have been christened by Commander Malik Carr. It was used by Nas Choka as Supreme Commander in the campaign against the Hutts, and remained his command ship after he became Warmaster, during Operation Trinity.
Behind the Scenes
During the Defense of Mon Calamari and Battle of Yuuzhan'tar, just a few months later, the Warmaster was using a ship named Yammka's Mount. However, as he still referred to this vessel as the Yammka, it is possible that his original flagship had simply been enlarged and upgraded to become a Kor Chokk[source?].