What command is given to reverse a preparatory command?

The command "As you were" is used to reverse a preparatory command and is a key element in military procedures. When this command is given, it instructs personnel to disregard the last command or action that was about to be executed, allowing them to revert to their previous positions or actions. This command is crucial in maintaining order and ensuring troops can quickly adjust to changes in instructions, reflecting the dynamic nature of military operations.

Understanding this command is essential for effective communication and command within military structures, where clarity and precision are paramount. The other options do not serve this same purpose of negating a prior command or returning to a previous state.