lost friends. invested a lot of our young adulthood to the -- to that city. >> i do care. and i hope it's a bump in the road. >> reporter: mike and nate are pragmatic, saying they didn't leave iraq thinking everything would be -- >> hunky dory. >> yeah. >> to my opinion, the government there is going to be tested for a long time. and this is part of that. >> reporter: but nate admits sometimes he has doubts. >> unfortunately, my inclination is now that doesn't feel so much like it's worth it. but i hesitate to say that, because knowing sacrifice that it takes and what's, you know, been spent. >> reporter: adam has no doubts, saying the marines fought gallantly. >> and courageously. for other people to enjoy the possibility of self-determination. and that's never a waste of time. >> reporter: which is why adam says he and other marines will be watching closely what happens next. >> part of me is actually very excited to see how the people of