What is defined as the lateral space between soldiers measured by having one soldier's left hand on his hip?

The correct answer is that the lateral space between soldiers is defined as the close interval, which refers to the specific distance maintained between individuals in a formation. In this context, having one soldier's left hand on their hip serves as a visual cue to indicate the appropriate amount of space. This position allows for a compact formation while still enabling movement and communication among soldiers without crowding.

The close interval is particularly important for maintaining order in formations, especially during drills or ceremonies where precision is paramount. It emphasizes quick responsiveness and the ability to maneuver efficiently.

The other terms define different spacing: the normal interval is typically a step apart, providing more room for movement and spreading out, while the double interval represents an even greater distance, often employed in wider formations. The right interval, while concerning spacing, usually focuses on the alignment of position to the right side of individuals rather than specifically addressing lateral space as defined by the close interval.