Filing in Sequence
Two, the first of which is: "Files, file to the right (or left)."
The second of which is: "File leaders, lead up your files as you were to this ground."
After soldiers have sufficiently drilled for proceeding a file at a time, they may expand their repertoire by understanding this command: "Files, file to the right." It means one file at a time, beginning with the right-most file, proceeds forward and then without further commands the next file falls in behind, and so on. Of course they need to be informed where to stop and whether or not to resume their former order at that place. The animation above has the soldiers resuming their former order; if the officer or sergeant wishes them to remain in one file, the command could be as: "Maintain one file and march on."