I would like to propose several additions into list:
343 - Dai 343 Kaigun Kokutai (official group of the Kusari Exiles) --- added, since I see AFC
5th - 5th Liberty Navy Fleet (?)
Banzai - see: Tenno heika banzai!
Baka - insult in Japanese, "idiot".
Drama - <I can't think out a good definition here>
-heika - Japanese honorative used for the top rank officer, emperor; rarely, prince or other imperial royalty
IKS - Imperial Kusari Ship
IKT - Imperial Kusari Transport
Ryokai - yes sir; roger
-san, -sama - Japanese honoratives used for the higher rank officers or older people
-senpai/-sempai - Japanese pseudo-honorative used for overall higher rank officer; literally "boss"
-kakka - Japanese honorative rarely used, but still present, for the Shogun.
-kun - Japanese honorative used for the lower or same-rank officer or younger/same age people
Tenno heika banzai! - "long live the Emperor"; taunt or rally used by Kusari Exiles
In the name of helping new players, this thread has been updated with the new layout.
Also sorry for grave digging. This is part of a larger project to have solid guides and material for new players.