Of course, the soldiers left much behind. Some were teenagers when the war began. Many have served multiple tours of duty, far from families who bore a heroic burden of their own, enduring the absence of a husband's embrace or a mother's kiss. Most painfully, since the war began, 55 members of the Fourth Stryker Brigade made the ultimate sacrifice -- part of over 4,400 Americans who have given their lives in Iraq. As one staff sergeant said, "I know that to my brothers in arms who fought and died, this day would probably mean a lot."