Army personnel should follow the AR 25–50 Army regulation to write a recorded memorandum for the Army. This regulation guides how to format, write, and sound in military correspondence. The message should include the date, subject, and purpose of the memorandum, as well as any necessary background or supporting information. It should be written in clear, concise language that sounds professional and uses the right level of formality. The memo should also be written correctly, signed, and filed according to how the Army keeps records.