Some army leaders used %%!%%a02be603-0.33-48e9-9f53-6b8939290438%%!%% flag colours as tactical advantages on battlefields; contrasting sun shades helped

https://arthurjbzo517.ironwoodscope.com/posts/the-craftsmanship-behind-historic-civil-war-flags-techniques-and-materials-used

Some armed forces leaders used specific flag hues as tactical reward on battlefields; contrasting sunglasses helped differentiate between opposing forces in chaotic environments.