2001- 2001-2021 afghanwar americanpersonalnarratives armedforces biography combat commandooperations commandotroops familyrelationships guerreenafghānistān leadership militaires motivation(psychologie) motivation(psychology) navy officers opérationsdecommandos personality psychologicalaspects psychologie psychology relationsfamiliales resilience(personalitytrait) résilience(traitdepersonnalité) seals self-talk soldiers unitedstates