When in uniform, you are authorized to wear sunglasses in all occasions EXCEPT when?

Wearing sunglasses while in uniform is generally permitted during various occasions for reasons such as eye protection and comfort. However, standing in formation holds specific protocols that prioritize uniformity and military decorum. Sunglasses can obscure one's face and hinder the ability to maintain proper visual contact and engagement with superiors and fellow service members. This focus on visibility and discipline is essential in formations, where the precise alignment and the clear presentation of the uniform are crucial. Consequently, the requirement to maintain a disciplined appearance culminates in the prohibition of sunglasses in this context, ensuring all personnel maintain the highest standard of military bearing.