Last paragraph. the Not Acceptable thing popped up so hope this will post.

“The Evolution toward Combat PracticalityBy the turn of the 20th century, the global reality of warfare forced a permanent split between ceremonial "flash" and field utility. Accurate enemy fire made camouflage a necessity, leading the military to transition colorful outfits exclusively to formal, non-combat settings. The Dress Blues survived this transition because they were restricted strictly to formal events, while everyday duties and combat were handed off to forest green wool service uniforms (1943) and eventually modern camouflage utilities. This allowed the Marine Corps to preserve its elite, highly tailored ceremonial traditions without compromising battlefield safety.”