What is the purpose of a command of execution in a drill?

The purpose of a command of execution in a drill is to signal when to begin movement. This command serves as a definitive marker for soldiers to act upon the preparatory command given prior, providing clear direction and coordination within the drill. The command of execution ensures that all participants initiate their movements simultaneously and in unison, which is essential for maintaining order and discipline during drill exercises. This structure fosters an environment where soldiers can effectively follow commands, enhancing their overall performance in tactical situations.

While the other options provide supportive functions like maintaining attention or reminding participants of steps, they do not serve the specific and primary function of indicating when to execute the movements dictated by the preparatory command.