[jounal] Kashdan, T. B. / 2006 / Gratitude and hedonic and eudaimonic well - being in vietnam war veterans / Behaviour Research and Therapy 44 (2): 177 ~ 199 (kci.go.kr)
beyond closed narratives, however, there are also many works that ask questions with inexplicable answers: what is the story behind danh vo's enigmatic photos from vietnam of the 1970s? (haubrok.org)
These are rather good systems: S - 75 used in vietnam war and cause notable casualties to US air forces, one of S - 200 downed F - 117 while Balcan war. (politics.stackexchange.com)