18. Picture 1 http://iowajima.com Joe Rosenthal II Picture 2 http://www.life.com/image/53449305/in-gallery/26872/channels/News/print/1 Scott Olson/Getty Images IR Picture 3 http://www.life.com/image/first/in-gallery/23073/vietnam-war-in-the-sky Larry Burrows/Time & Life Pictures/Getty Images V Picture 4 http://www.life.com/image/50777056/in-gallery/26872/words-of-comfort-wartime-letters Michael Rougier/Time & Life Pictures/Getty Images K Picture 5 http://en.wikipedia.org/wiki/File:African_American_Soldiers.jpg WWI Picture 6 http://www.life.com/image/85552214/in-gallery/27032/todays-wars-iraq-and-afghanistan John Moore/Getty Images A Picture 7 http://en.wikipedia.org/wiki/Operation_Just_Cause US Army P Picture 8 http://www.life.com/image/909354 DoD/Getty Images PG All photos are taken from sites which allow their use for non-commercial purposes
19. Picture 9 http://www.flickr.com/photos/imcomkorea/2919535157/in/photostream US Army K Picture 10 http://commons.wikimedia.org/wiki/File:USAF_F-16A_F-15C_F-15E_Desert_Storm_edit2.jpg US Army PG Picture 11 http://en.wikipedia.org/wiki/File:PanamaJustCause1991.jpg DoD P Picture 12 http://en.wikipedia.org/wiki/File:Battle_of_St._Mihiel_03.jpg Natl Archives WWI Picture 13 http://www.defenseimagery.mil/imagery.html#a=search&s=090516-A-6851O-049&chk=6cfe0&n=90 DoD IR Picture 14 http://www.life.com/image/first/in-gallery/23030/wwii-women-in-the-fight Three Lions/Getty Images II Picture 15 http://www.army.mil/-images/2007/02/07/2533/ US Army V Picture 16 http://www.defenseimagery.mil/imagery.html#a=search&s=070115-A-9307C-014&chk=6cfe0&n=90 DoD A All photos are taken from sites which allow their use for non-commercial purposes