CNN CNN Newsroom January 12, 2014 20:41:00
Big time. >> reporter: some of the hardest, bloodiest warfare since vietnam. >> when it came to fallujah, that was stand up fighting. >> reporter: they were in the same artillery unit. >> this is a pretty cool photo here. >> reporter: for days they loaded and fired 100 pound shells into the city. >> it just felt lying an eternity. >> constant shooting. >> reporter: a 23-year-old second lieutenant leading his platoon into the heart of the fight. >> i went to iraq with 41 marines and came home with 22. >> reporter: all of which explains why what happened in iraq today matters a great deal to the...