Black flags have historically been used to signify that no quarter will be given. When translated into modern language, this means that captured enemy combatants will be killed rather than taken prisoner. The US Military and specific Law Enforcement units also have been known to use subdued or muted color versions of the American flag. This is typically in situations where the visibility of the standard red, white and blue would be too stark of a contrast with the surroundings. Flag measures 4 feet x 6 feet with 2 brass grommets for easy displayEmbroidered 100% COTTON Flag Cotton Flags should be used indoor only Pole sold separately Additional Details ------------------------------ Product description: Black flags have historically been used to signify that no quarter will be given. When translated into modern language, this means that captured enemy combatants will be killed rather than taken prisoner. The US Military and specific Law Enforcement units also have been known to use subdued or muted color versions of the American flag. This is typically in situations where the visibility of the standard red, white and blue would be too stark of a contrast with the surroundings