Iraq 'more peaceful,' but not stable yet
March 19, 2010: "All the hard work we've done over the past few years has paid off," one U.S. soldier tells NBC News' Richard Engel in a discussion about the U.S. military's role in Iraq. He added that knowing his friends "didn't die in vain is a big pay off."
The invasion, day by day
From the first blasts that rocked Baghdad to the U.S. military's declaration that major combat was over, see images from every day of the conflict.
Audio slide show
Scars from Iraq
Three U.S. soldiers tell how the visible and invisible wounds of war changed their lives and impacted their loved ones.
Invasion Iraq: Day by day
In maps and stories, how the coalition defeated Saddam
Iraq War in review