User blog comment:Master Sima Yi/Assassinews 03-03-'13 — Assassin's Creed IV: Black Flag trailer and screenshots/@comment-4636255-20130304122448/@comment-4636255-20130304233755

@FTGM: I thought of that as well. And that's the only possibility that makes sense.

@Sima: I'm assuming when Birch referred to America, he meant the whole of America. Why would he have sent Haytham to the Colonies without any real help, if they had a base in the Caribbean? Birch could easily have asked for the Carib Templars' help, especially considering that there had been Assassins there for at least three centuries, and Haytham would need more than just 5 loyal friends to defeat them.