While our Army Ball In Louisiana is always White-Tie formal attire for spouses-I have heard of other units/states having different dress codes. Here is a chart if you are wondering what is acceptable to wear for a particular dress code.
[USD 149.99] Sleeveless Black Lace Applique Cocktail Dress Party Dress (04160800)
Black Lace Applique Cocktail Party Dress.
Lace Pencil Dress
Aire Barcelona 2016
Vestido Longo - Vestido de Formatura - Prom Dress - Long dress