Write the full rank, the full name and then the branch for active military personnel. The rules are uniform across all military branches. So, you would address their names as: Brigadier General James A. Marshall, USA or Rear Admiral Jennifer J. Jones, USN or Lieutenant Commander George Washington, Jr., USCG or Lance Corporal Keith Hill, USMC

Put a title or position, such as “Commanding Officer, Fort Leavenworth” directly below the name for official envelopes to a brigadier general.

Write the address as you would for anyone, putting it below either the name or the title.

Put your name clearly on the front of the envelope with the return address to avoid delays in delivery.

Address letters to retired military personnel similarly to active-duty personnel. Put the full rank, the full name, the branch and then the word “Retired,” such as: Captain James A. O’Reilly, USA, Retired or Rear Admiral Patricia Klein, USN, Retired

Omit the military branch for a retired member of the military and the word “Retired” if the letter is for social reasons. In this case, the first line on the envelope would read: Colonel James Phillips

Include your name on the return address. If you are writing on behalf of an organization, use its stationery, or put it in the return address.