Lines — Enemy

In a more literal sense, if you were referring to a common phrase in the fountain pen hobby, enthusiasts often discuss Behind Enemy Lines - Bad Paper! —which focuses on how certain inks perform on low-quality, "common" paper like standard copy or notebook paper.

For those interested in historical records and first-hand accounts on paper: Enemy Lines

If you are looking for an academic paper or scholarly critique, several articles analyze the cultural and political impact of the film Behind Enemy Lines (2001) and real-world intelligence operations: In a more literal sense, if you were

: Data from Behind Enemy Lines: How Russia May have Used Twitter to Seize Crimea discusses how modern social media data is used as a new frontier for military planning and "information warfare". : The article Brothers across Enemy Lines documents

: The article Brothers across Enemy Lines documents the letters between a mission president and a German soldier during World War I.

: Detailed summaries of the real-life events that inspired the film Behind Enemy Lines , such as the experience of pilot Scott O'Grady, provide a factual "on paper" comparison to the cinematic version. Fountain Pen Community ("Bad Paper")