What command is given to revoke a preparatory command?

The command to revoke a preparatory command is "As You Were." This command is used to indicate that the last preparatory command given is to be disregarded and the troops should return to their previous positions or activities. It essentially acts as a way to cancel the effect of any preceding command that has not yet been executed. This is particularly useful in military drills where commands can quickly change based on situational needs.

Unlike the other choices, which refer to specific commands with different purposes, "As You Were" is specifically structured as a revocation command. "Attention" calls soldiers to a posture of readiness, "Stand Fast" instructs troops to remain in their current position, and "Cease Fire" is relevant in a combat context to stop firing. Each of these commands serves distinct functions in military communication, but none serves the purpose of revoking a preparatory command like "As You Were."