2001- 2003-2011 afghanistan-war afghanwar americanpersonalnarratives armed-forces armedforces biography bravery chivers combat frontline honor iraq-war iraqwar journalism military military-families molecularaspects newyorktimesbestseller newyorktimesreviewed non-fiction personalnarratives phylogeny ptsd resilience sacrifice soldiers united-states-military unitedstates veterans war warriors