Which of the following is NOT a type of command in drill?

In the context of drill commands, "Independent" is not recognized as a standard type of command. There are various classifications of commands used in military drill, including two-part commands, which consist of a preparatory command followed by a command of execution; combined commands, where both parts are delivered together for efficiency; and supplementing commands, which are used to provide additional instructions or clarifications.

The classification as independent implies a standalone structure that does not align with the established categories of drill commands. Understanding the framework of military commands is essential for effective execution and organization in drills, thus reinforcing why "Independent" does not fit within traditional types of commands.