I read the novel, my favourite Trek story to date.
My Enemy, My Ally (in which we meet commander Ael and find out about what corrupt elements of the Romulan governement are doing);
The Romulan Way (in which we see about the society of the Two Worlds and how it came to be, and Ael makes a cameo in the end to prove not all Romulans lost their honor);
Swordhunt (in which we see an attempt to prevent the Second Romulan War and the last plan of the Romulan governement. Was originally published as the separate novels Swordhunt and Honor Blade);
The Empty Chair (in which the Second Romulan War and the Romulan Civil War have erupted, and Ael, with Kirk's help, has to defeat the governement before it's too late).
I'm not as familiar with much of the backstory etc to Star Trek as I am with other scifi series. It's limited to games and a widely spaced array of episodes I'm afraid.
Thanks for the link, looks like fun.