What is defined as a column with a front of only one element?

A column with a front of only one element is referred to as a "file." In military drill terminology, a "file" is formed by people standing one behind the other, creating a single column. This concept is key for understanding formations and alignments in drill commands, as it emphasizes the organization of personnel in a linear arrangement for precision and clarity during inspections and movements.

In contrast, a "rank" refers to a formation where individuals are standing side by side, creating a horizontal line that typically includes multiple elements. A "squad" is a smaller group within a larger formation, consisting of several individuals usually organized in ranks and files. A "section" typically comprises a larger group than a squad, often consisting of multiple squads working together. Each of these terms represents a different aspect of military organization, but for the definition of a single-element column, "file" is the correct term.