This is what he needed to do:
[Sheridan practices his apology to the Centauri government before a mirror.]
Sheridan: I apologize. I’m…sorry. [sighs] I’m sorry we had to defend ourselves against an unwarranted attack. I’m sorry that your crew was stupid enough to fire on a station filled with a quarter million civilians, including your own people. And I’m sorry I waited as long as I did before I blew them all straight to hell! [pauses] As with everything else, it’s the thought that counts.
And so it begins...