Which formation provides defense against air and indirect fire?

• A. Diamond Formation
• B. Inverted T Formation
• C. Offset Formation
• D. Herringbone Formation

Answer: (D)

Defending against air and indirect fire relies on creating overlapping fields of fire and the ability to pivot quickly to threats from any direction. The herringbone formation achieves this by lining vehicles along a route at diagonal angles, forming a zigzag pattern. Each vehicle covers a distinct sector to the front and flanks, so threats from the sides, rear, or above can be met with rapid, mutual support. The angled setup also reduces how exposed the group is to a single indirect-fire hit and helps improve observation and early warning, enabling quicker reaction to mortar or aircraft threats. While other formations emphasize different security aspects—such as all-around coverage, fixed crossfire along a corridor, or spread to create lanes—herringbone uniquely blends sector defense with rapid reorientation to multiple threat directions.