concerns about the stability and security of iraq. abc s nick schifrin is in baghdad this morning with more on this watershed moment for both countries. good morning to you, nick. reporter: good morning, rob. good morning, sunny. it defined george bush s presidency and helped barack obama s ride. and almost $8 billion later, the u.s. presence in iraq is all but gone. the u.s. s war in iraq is almost over. and sergeant larry green is headed home. a million men and women served here. 4,500 died. green survived four deployments. he was one of the first soldiers in. and one of the last out. leaving here, knowing that i started and i m finishing. you know, times were bad. we had some good times over here. but to say that i made it to the end. reporter: lieutenant shawn fox was 14 when the war began. today, he lives in one of saddam hussein s old palaces. he shares a room with his entire platoon. what do you have left? have left? pretty much have got my bag. a bunch of cl