For those interested in historical records and first-hand accounts on paper:
Depending on whether you are looking for academic analysis, historical accounts, or stationery advice, several "papers" and resources are related to "Enemy Lines." Enemy Lines
: The article Brothers across Enemy Lines documents the letters between a mission president and a German soldier during World War I. For those interested in historical records and first-hand
: Reporting from Behind Enemy Lines explores how independent journalists report from conflict zones at great personal risk. Historical Documentation and Essays or stationery advice