One of the great things about Gears of War
is the deep backstory that the folks at Epic crafted for the game. You don't get a lot of that in the game but the world feels well thought out. Some of the details of that world will be released
next August in Gears of War: The Pendulum Wars - The Battle of Aspho Fields a new book by Steven Kent. This book should set more light on the characters in the game as well as providing some setup for the inevitable sequel. I just hope the book is as good as Mass Effect Revelations.