What are the essential elements of a formal military memo header?

• A. Date, to/from, subject, reference (if applicable), and signature block
• B. Only date and subject
• C. Place and time
• D. Body only

Answer: (A)

A formal military memo header must clearly identify who issues the memo, who it is for, when it was written, and what it concerns, with an official sign-off for accountability. The date sets the timing of the communication. The to/from lines designate the recipients and the issuing authority. The subject line states the topic at a glance. The reference line, when used, links to related documents for context or prior correspondence. The signature block authenticates the document and shows approval or authority behind it. Together, these elements ensure proper routing, traceability, and official standing of the memo. Options that omit any of these pieces—such as only date and subject, place and time, or body-only—fail to provide the full header necessary for formal, accountable military communication.