Final answer:
The white mess and evening white mess uniforms are authorized for wear in certain formal evening occasions in the military.
Step-by-step explanation:
The white mess and evening white mess uniforms are authorized for wear in certain situations in the military.
The white mess uniform is worn by officers for formal evening occasions, such as military balls or formal dinners. It is a highly formal uniform and is similar in appearance to a civilian tuxedo.
The evening white mess uniform, on the other hand, is worn by enlisted personnel for the same types of formal events. It consists of a white tunic and trousers, and is often worn with white gloves and a black bow tie.