What is the term used for the beginning and end of a drill sequence?

The term used for the beginning and end of a drill sequence is the Command of Execution. This command is essential as it indicates to the personnel when to perform the movement or action in response to the preliminary command. For instance, a basic command might consist of a "Ready" command followed by a "March!" where the latter serves as the command of execution, directing the cadets to commence the drill.

Understanding this concept is crucial in drill and ceremony, as the clarity of the command can significantly impact the precision and timing of the unit's movements. The precision in executing commands reflects discipline and attention to detail, both fundamental attributes in military operations.