At the squad level, which formation places soldiers in a single-file column for movement?

• A. Fire Team Wedge
• B. Squad Line
• C. Squad Column
• D. Squad Echelon

Answer: (D)

Moving in a single-file column is about keeping the squad compact and under tight control as you pass through confined routes. In this setup, soldiers line up directly behind one another, forming a straight line along the path. That tight alignment makes it easy for the squad leader to pace, manage spacing, and maintain contact with every member, which is essential for navigation through narrow or obstructed terrain.

That’s why the squad column is the formation used for true single-file movement. The other formations shift the unit’s shape for different purposes: a fire team wedge spreads the team to cover front and flanks, increasing width for security in open terrain; a squad line places two ranks side by side for a wider front, not a single-file path; and a squad echelon staggers the team diagonally for flank protection or to maneuver around obstacles, which does not produce a true one-file alignment.