What does interval refer to in regards to marching?

Interval in marching specifically refers to the lateral space between elements on the same line. This is important for maintaining proper formation and ensuring that individuals or units have enough space to execute movements without risking collision or crowding. For example, in a unit formation, if the interval is too narrow, it can impede individual movement and affect the overall alignment of the formation. Proper intervals allow for effective communication and movement within the ranks, which is essential for the discipline and order expected in military drills.

The other options address different aspects of marching, such as the distance between ranks, the pace or speed of marching, and the rhythm or cadence, which are all distinct from the concept of interval. Understanding these terms helps clarify the structure and execution of marching as a coordinated team effort.