Microsoft has filed a trademark for a video game called Iron Brigade, according to the United States Patent and Trademark Office.
Not much is known yet about which military unit the game refers to, but as states across the country commemorate the 150th anniversary of the Civil War, it’s possible the title is a reference to the “Iron Brigade”, an Union Army infantry brigade which suffered the highest percentage of casualties of any brigade during the Civil War.
Other possibilities include present day U.S. military units such as the 2nd Brigade of the U.S. Army’s 1st Armored Division, but with the timing of the filing, it seems more likely the game will be centered around the American Civil War.
The trademark filing (Serial Number: 85381616) occurred on July 26, 2011 and says nothing more than for use as computer game software.
A filing back in June for Bloodforge, turned out to be a combat action title set in ancient Celtic world for its online game hub Xbox Live Arcade.
I will update this post as I get more information.