I have googled and read every relevant passage in my etiquette book and can NOT find how to properly address this invitation. Help!
It is to my aunt, who is a Lieutenant (O-3) in the Navy, we'll call her Lieutenant Jane Doe. She is married to John Doe, a retired Navy Senior Chief Petty Officer (E-8). (No worries about fraternization for those who would care, she was enlisted also when they married!) It is not a military wedding, but more than half of the guest list is military in some way, and it is a very formal wedding.
Any ideas?